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omr-ws-00ebd3ea59bc265e5cb58c9219ee579eaf1265ae24c0270de9b4b468009ee69e
Assume that $n$ copies of unit cubes are glued together side by side to form a rectangular solid block. If the number of unit cubes that are completely invisible is $30$, then find the minimum possible value of $n$.
[ "140" ]
[ "Assume that $n$ copies of unit cubes are glued together side by side to form a rectangular solid block. If the number of unit cubes that are completely invisible is $30$, then find the minimum possible value of $n$." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 8 }
24
0
0
omr-ws-d51173bfa1d22689ca6288f706eb0efde95762d1acc226e2bec9b91574f5ec95
Assume that $n$ is divisible by 3. If an $n$-gon has $k$ right angles, find the maximum value of $k$ such that $k = \frac{2}{3}n$ and $n = 3m$ for some positive integer $m$. Calculate the value of $k$ when $m = 10$.
[ "20" ]
[ "Assume that $n$ is divisible by 3. If an $n$-gon has $k$ right angles, find the maximum value of $k$ such that $k = \\frac{2}{3}n$ and $n = 3m$ for some positive integer $m$. Calculate the value of $k$ when $m = 10$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-167f5c4ca427b3e555113f368e4d4429872c50f4623d5ce257bcc74feb5a35cf
Assume that $n=2022$. Find the minimum number of training sessions that the club must run, given that each member attends all sessions, each session divides the members into three groups (swimming, cycling, and running), each group has at least one person, and for any two members, there is at least one session where th...
[ "7" ]
[ "Assume that $n=2022$. Find the minimum number of training sessions that the club must run, given that each member attends all sessions, each session divides the members into three groups (swimming, cycling, and running), each group has at least one person, and for any two members, there is at least one session whe...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-c1fd8c62b6ccbef6d5473e88480ea2b89841be88f86eb423c1fe79166eb5c8c5
Assume that $n=9$. The club has already run one training session and will run one more session. How many ways can the group be divided for the second training session, given that each member attends all sessions, each session divides the members into three groups (swimming, cycling, and running), each group has at leas...
[ "216" ]
[ "Assume that $n=9$. The club has already run one training session and will run one more session. How many ways can the group be divided for the second training session, given that each member attends all sessions, each session divides the members into three groups (swimming, cycling, and running), each group has at...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-88bd8fbb205bb19478b93c73aa13e2d5108bf288b3cc828d8758045c9cb260a0
Assume that $x_1,x_2,\ldots,x_7$ are real numbers such that \[\begin{aligned} x_1+4x_2+9x_3+16x_4+25x_5+36x_6+49x_7 &= 1 \\ 4x_1+9x_2+16x_3+25x_4+36x_5+49x_6+64x_7 &= 12 \\ 9x_1+16x_2+25x_3+36x_4+49x_5+64x_6+81x_7 &= 123. \end{aligned}\]Find the value of $16x_1+25x_2+36x_3+49x_4+64x_5+81x_6+100x_7$.
[ "334" ]
[ "Assume that $x_1,x_2,\\ldots,x_7$ are real numbers such that\n\\[\\begin{aligned} x_1+4x_2+9x_3+16x_4+25x_5+36x_6+49x_7 &= 1 \\\\ \n4x_1+9x_2+16x_3+25x_4+36x_5+49x_6+64x_7 &= 12 \\\\\n9x_1+16x_2+25x_3+36x_4+49x_5+64x_6+81x_7 &= 123. \\end{aligned}\\]Find the value of $16x_1+25x_2+36x_3+49x_4+64x_5+81x_6+100x_7$." ...
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-15dd5b51ed927e6af0487b239f910f7cd8b1e827a66fbdaafaab4b7c45a5afd1
Assume that $|f(x)| \leq 1$ and $|f''(x)| \leq 1$ for all $x$ on an interval of length at least $2$. Let $M$ be the maximum value of $|f'(x)|$ on the interval. Find the smallest possible value of $M$.
[ "1" ]
[ "Assume that $|f(x)| \\leq 1$ and $|f''(x)| \\leq 1$ for all $x$ on an interval of length at least $2$. Let $M$ be the maximum value of $|f'(x)|$ on the interval. Find the smallest possible value of $M$." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 2, "genselect": 6 }
8
0
0
omr-ws-f3193cd7c9a816f2ee2dadf711a9cf8796f3b063762d971bbc7aad1a3b6cbd8a
Assume that 80% of the children of Harvard alumni go to Harvard, and the rest go to Yale. Of the children of Yale alumni, 40% go to Yale and the remainder are divided equally between Harvard and Dartmouth. Of the children of Dartmouth alumni, 70% go to Dartmouth, 20% to Harvard, and 10% to Yale. Find the probability th...
[ "0.644" ]
[ "Assume that 80% of the children of Harvard alumni go to Harvard, and the rest go to Yale. Of the children of Yale alumni, 40% go to Yale and the remainder are divided equally between Harvard and Dartmouth. Of the children of Dartmouth alumni, 70% go to Dartmouth, 20% to Harvard, and 10% to Yale. Find the probabili...
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 29 }
44
0
0
omr-ws-dfbaf931674b37142a971bc4de059694138579359a440282a931ac377d68e1a5
Assume that A is a 1×n table where \( n = 2^k \). We place the numbers 1 through n in the table in an arbitrary order. We perform the following operation 2k times: for each \( i \) from 1 to \( n \), if the \( i \)-th entry is \( s \), we replace the \( i \)-th entry with the number in the \( s \)-th entry. Let \( T \)...
[ "136" ]
[ "Assume that A is a 1×n table where \\( n = 2^k \\). We place the numbers 1 through n in the table in an arbitrary order. We perform the following operation 2k times: for each \\( i \\) from 1 to \\( n \\), if the \\( i \\)-th entry is \\( s \\), we replace the \\( i \\)-th entry with the number in the \\( s \\)-th...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-0389734ae04cefbd69a26442144a0315db153a194788962cdd58a7d9a6138c48
Assume that \( 0 \le \alpha_1, \alpha_2, \ldots, \alpha_n \le \pi \) such that: \[ \sum_{i=1}^n \cos \alpha_i + n \] is odd. Find the minimum possible value of: \[ \sum_{i=1}^n \sin \alpha_i \] for \( n = 5 \).
[ "1" ]
[ "Assume that \\( 0 \\le \\alpha_1, \\alpha_2, \\ldots, \\alpha_n \\le \\pi \\) such that:\n\\[ \\sum_{i=1}^n \\cos \\alpha_i + n \\]\nis odd. Find the minimum possible value of:\n\\[ \\sum_{i=1}^n \\sin \\alpha_i \\]\nfor \\( n = 5 \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-4aa6a274310a5515ee316b6f8b1e509e8bbc77ee770f362d21db3047de276fce
Assume that \( 0 \leq x_1, x_2, x_3, y_1, y_2, y_3 \leq \frac{\pi}{2} \). Let \( x_1^2 + x_2^2 + x_3^2 = 10 \) and \( y_1^2 + y_2^2 + y_3^2 = 5 \). Calculate the minimum possible value of \( (\cos y_1 + \cos y_2 + \cos y_3) - (\cos x_1 + \cos x_2 + \cos x_3) \).
[ "3\\left( \\cos \\sqrt{\\frac{5}{3}} - \\cos \\sqrt{\\frac{10}{3}} \\right)" ]
[ "Assume that \\( 0 \\leq x_1, x_2, x_3, y_1, y_2, y_3 \\leq \\frac{\\pi}{2} \\). Let \\( x_1^2 + x_2^2 + x_3^2 = 10 \\) and \\( y_1^2 + y_2^2 + y_3^2 = 5 \\). Calculate the minimum possible value of \\( (\\cos y_1 + \\cos y_2 + \\cos y_3) - (\\cos x_1 + \\cos x_2 + \\cos x_3) \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems", "genselect" ]
{ "additional_problems": 1, "genselect": 3 }
4
0
0
omr-ws-ded2f0307d15e48eb46a5e74e55117d34d3fb29bcdeedd2f2c25f412895d4f6b
Assume that \( A \) and \( B \) are two \( 4 \times 4 \) complex matrices such that \( A^2 = I \) and \( B^2 = I \). Find the dimension of the largest subspace \( V \) of \( \mathbb{C}^4 \) that is invariant under both \( A \) and \( B \).
[ "2" ]
[ "Assume that \\( A \\) and \\( B \\) are two \\( 4 \\times 4 \\) complex matrices such that \\( A^2 = I \\) and \\( B^2 = I \\). Find the dimension of the largest subspace \\( V \\) of \\( \\mathbb{C}^4 \\) that is invariant under both \\( A \\) and \\( B \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-aeeb263f0d87caa26d0d7b5a50809833191a9e1c7c1bcaf7bdfc59085073f1b9
Assume that \( C \) is a convex subset of \( \mathbb{R}^3 \). Suppose that \( C_1, C_2, \dots, C_n \) are translations of \( C \) such that \( C_i \cap C \neq \emptyset \) but \( C_i \cap C_j = \emptyset \) for \( i \neq j \). Let \( f(C) \) be the maximum number of such translations. If \( C \) is a sphere of radius 1...
[ "12" ]
[ "Assume that \\( C \\) is a convex subset of \\( \\mathbb{R}^3 \\). Suppose that \\( C_1, C_2, \\dots, C_n \\) are translations of \\( C \\) such that \\( C_i \\cap C \\neq \\emptyset \\) but \\( C_i \\cap C_j = \\emptyset \\) for \\( i \\neq j \\). Let \\( f(C) \\) be the maximum number of such translations. If \\...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-95530e42649b1b98c5081412758d971179817edc2c1fdd23c3b25e24d59508c7
Assume that \( D, E, F \) are midpoints of \( BC, AC, AB \) of \( \triangle ABC \). Suppose that \( AD, BE, CF \) intersect the circumcircle of \( \triangle ABC \) at \( A_1, B_1, C_1 \) respectively. \( A_1E \) and \( A_1F \) intersect the circumcircle of \( \triangle ABC \) again at points \( A', A'' \) respectively....
[ "3" ]
[ "Assume that \\( D, E, F \\) are midpoints of \\( BC, AC, AB \\) of \\( \\triangle ABC \\). Suppose that \\( AD, BE, CF \\) intersect the circumcircle of \\( \\triangle ABC \\) at \\( A_1, B_1, C_1 \\) respectively. \\( A_1E \\) and \\( A_1F \\) intersect the circumcircle of \\( \\triangle ABC \\) again at points \...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 4 }
8
0
0
omr-ws-69708187335d827b793d0282d911babe1bdf4c525b7642141028d10fa682c3cb
Assume that \( F \) is a family of real sequences. For every \( (a_n), (b_n) \in F \), it holds that \( \sum a_n b_n = 0 \). Does it follow that \( F \) is countable?
[ "Yes" ]
[ "Assume that \\( F \\) is a family of real sequences. For every \\( (a_n), (b_n) \\in F \\), it holds that \\( \\sum a_n b_n = 0 \\). Does it follow that \\( F \\) is countable?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 14 }
14
0
0
omr-ws-f4cd641c58e8542a164c129383280bcf8889e27afcdb5430f4e2d4b054bf73c0
Assume that \( K \) is a CW complex containing \( m \) \( n \)-simplices \( \sigma_1, \dots, \sigma_m \) such that \( |K| \) is homeomorphic to an \( n \)-dimensional unit disk. If \( m \geq 1 \), let \( f(m) \) be the number of indices \( i \) such that the sub-CW complex generated by \( \sigma_1, \dots, \sigma_{i-1},...
[ "5" ]
[ "Assume that \\( K \\) is a CW complex containing \\( m \\) \\( n \\)-simplices \\( \\sigma_1, \\dots, \\sigma_m \\) such that \\( |K| \\) is homeomorphic to an \\( n \\)-dimensional unit disk. If \\( m \\geq 1 \\), let \\( f(m) \\) be the number of indices \\( i \\) such that the sub-CW complex generated by \\( \\...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 3, "genselect": 1 }
4
0
0
omr-ws-c55a3bea9a5b4735c2580e1c87a07d87d249eefcf1bc4c05f412ac5172afe2e4
Assume that \( M \) is a compact \( C^r \)-manifold with \( r \geq 1 \), and \( f: M \rightarrow \mathbb{R} \) is differentiable. If \( f \) has exactly two critical points, determine the Euler characteristic \( \chi(M) \).
[ "2" ]
[ "Assume that \\( M \\) is a compact \\( C^r \\)-manifold with \\( r \\geq 1 \\), and \\( f: M \\rightarrow \\mathbb{R} \\) is differentiable. If \\( f \\) has exactly two critical points, determine the Euler characteristic \\( \\chi(M) \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-bc0f23a5d7f4196abe1d451ccbb8b5a0cd9ef3449507ea7c71cea0b921982efe
Assume that \( P \) is the Brocard point of triangle \( ABC \), i.e., \( \angle PAB = \angle PBC = \angle PCA \). Let \( D, E, F \) be the feet of the perpendiculars from \( P \) to \( AB, BC, CA \) respectively. Given that \( BD = CE = FA \), calculate the value of \( \frac{AB}{BC} + \frac{BC}{CA} + \frac{CA}{AB} \) i...
[ "3" ]
[ "Assume that \\( P \\) is the Brocard point of triangle \\( ABC \\), i.e., \\( \\angle PAB = \\angle PBC = \\angle PCA \\). Let \\( D, E, F \\) be the feet of the perpendiculars from \\( P \\) to \\( AB, BC, CA \\) respectively. Given that \\( BD = CE = FA \\), calculate the value of \\( \\frac{AB}{BC} + \\frac{BC}...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-8de23e61026d5204805317bffacb391f5911aba713d206fecf9753e8ff5c1bff
Assume that \( R \) is a Noetherian ring and \( M \) is a finitely generated \( R \)-module. Let \( p \in \text{supp}_R(M) \). Calculate the minimum possible dimension of \( \text{Hom}_R(M, R/p) \) as a vector space over the field \( R/p \).
[ "1" ]
[ "Assume that \\( R \\) is a Noetherian ring and \\( M \\) is a finitely generated \\( R \\)-module. Let \\( p \\in \\text{supp}_R(M) \\). Calculate the minimum possible dimension of \\( \\text{Hom}_R(M, R/p) \\) as a vector space over the field \\( R/p \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-129c264735de6d6ef649df6fd0194c3b61dc4df840d299d065bb7e0516fc31d8
Assume that \( R \) is a commutative ring and \( S \) is the set of zero divisors of \( R \). If \( R \) has a finite number of minimal prime ideals \( P_1, \ldots, P_n \), let \( f(R) \) be the number of elements in the set \( \{ x \in R \mid x \in S^{-1}R \setminus (R_{P_1} \times \cdots \times R_{P_n}) \} \). Calcul...
[ "0" ]
[ "Assume that \\( R \\) is a commutative ring and \\( S \\) is the set of zero divisors of \\( R \\). If \\( R \\) has a finite number of minimal prime ideals \\( P_1, \\ldots, P_n \\), let \\( f(R) \\) be the number of elements in the set \\( \\{ x \\in R \\mid x \\in S^{-1}R \\setminus (R_{P_1} \\times \\cdots \\t...
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-e559a9bb10b6103b1c5c2bc4655180979873b215cb86f86a7558a79452c3e864
Assume that \( W \) is a subspace of \( \mathbb{R}^{4} \) generated by the vectors \( x_1 = (1, 0, 1, 0) \), \( x_2 = (0, 1, 1, 4) \), and \( x_3 = (1, -2, 5, -3) \). Find a basis for \( W \) and extend it to a basis for \( \mathbb{R}^{4} \).
[ "\\{ (1, 0, 1, 0), (0, 1, 1, 4), (1, -2, 5, -3), (5, -19, -5, 6) \\}" ]
[ "Assume that \\( W \\) is a subspace of \\( \\mathbb{R}^{4} \\) generated by the vectors \\( x_1 = (1, 0, 1, 0) \\), \\( x_2 = (0, 1, 1, 4) \\), and \\( x_3 = (1, -2, 5, -3) \\). Find a basis for \\( W \\) and extend it to a basis for \\( \\mathbb{R}^{4} \\)." ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 2 }
2
0
0
omr-ws-94f3a4e1e1283588b649643fc6824b4ef6f47dc0977ac594c6d1ac561d64d59f
Assume that \( a_n > 0 \) and that \( \sum a_n \) diverges. For \( \alpha > 1 \), let \( S_N = \sum_{n=1}^N \frac{a_n}{1 + n^\alpha a_n} \). Find the smallest value of \( \alpha \) such that \( S_N \) converges for all sequences \( \{a_n\} \) satisfying the given conditions.
[ "2" ]
[ "Assume that \\( a_n > 0 \\) and that \\( \\sum a_n \\) diverges. For \\( \\alpha > 1 \\), let \\( S_N = \\sum_{n=1}^N \\frac{a_n}{1 + n^\\alpha a_n} \\). Find the smallest value of \\( \\alpha \\) such that \\( S_N \\) converges for all sequences \\( \\{a_n\\} \\) satisfying the given conditions." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 5, "genselect": 2 }
7
0
0
omr-ws-ff26805aac10e62d311db0506b01b187e6838801c419345e462d2d2ef41d0298
Assume that \( f : [0,+\infty) \to [0,+\infty) \) is an increasing smooth function with \( f(0) = 0 \). Suppose also that \( tf''(t) + f(t)f'(t) \le 0 \) for all \( t > 0 \). Find the maximum possible value of \( f(1) \).
[ "2" ]
[ "Assume that \\( f : [0,+\\infty) \\to [0,+\\infty) \\) is an increasing smooth function with \\( f(0) = 0 \\). Suppose also that \\( tf''(t) + f(t)f'(t) \\le 0 \\) for all \\( t > 0 \\). Find the maximum possible value of \\( f(1) \\)." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-c0459455dd7242de333c7d27f6102d43e09b7ac3e8f97f0df26d5e6eb456b98d
Assume that \( f : [0,1) \to \mathbb{R} \) is a function such that \( f(x) - x^3 \) and \( f(x) - 3x \) are both increasing functions. Let \( g(x) = f(x) - x^2 - x \). If \( g(x) \) is an increasing function, calculate \( g(0.5) - g(0) \). If \( g(x) \) is not an increasing function, provide the value \( -1 \).
[ "\\dfrac{3}{4}" ]
[ "Assume that \\( f : [0,1) \\to \\mathbb{R} \\) is a function such that \\( f(x) - x^3 \\) and \\( f(x) - 3x \\) are both increasing functions. Let \\( g(x) = f(x) - x^2 - x \\). If \\( g(x) \\) is an increasing function, calculate \\( g(0.5) - g(0) \\). If \\( g(x) \\) is not an increasing function, provide the va...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-4592bb0391fa149e903a635be7506b844c704e544db636d292a051cacee6ba2e
Assume that \( f \) and \( g \) are holomorphic functions on an open set \( U \) and \( \overline{D}(0,1) \subset U \). Let \( M \) be the maximum value of \( |f(z)| + |g(z)| \) for \( z \in \overline{D}(0,1) \). If \( z_0 \) is a point on the boundary \( |z_0| = 1 \) such that \( |f(z_0)| + |g(z_0)| = M \), find the v...
[ "4" ]
[ "Assume that \\( f \\) and \\( g \\) are holomorphic functions on an open set \\( U \\) and \\( \\overline{D}(0,1) \\subset U \\). Let \\( M \\) be the maximum value of \\( |f(z)| + |g(z)| \\) for \\( z \\in \\overline{D}(0,1) \\). If \\( z_0 \\) is a point on the boundary \\( |z_0| = 1 \\) such that \\( |f(z_0)| +...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-1bd6cf2f60a606010c14587db63ff13c9cc56a4efbbb143aa7d2f1d0292a1667
Assume that \( f \) is a continuous real function defined on the interval \((a, b)\) such that \[ f\left(\frac{x+y}{2}\right) \leq \frac{f(x) + f(y)}{2} \] for all \( x, y \in (a, b) \). If \( f(1) = 1 \) and \( f(3) = 9 \), find the maximum possible value of \( f(2) \).
[ "5" ]
[ "Assume that \\( f \\) is a continuous real function defined on the interval \\((a, b)\\) such that\n\\[ f\\left(\\frac{x+y}{2}\\right) \\leq \\frac{f(x) + f(y)}{2} \\]\nfor all \\( x, y \\in (a, b) \\). If \\( f(1) = 1 \\) and \\( f(3) = 9 \\), find the maximum possible value of \\( f(2) \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-22c99ca18023225b88023508020c7ea6d928120b3c07e9f0e4798c6c13f635ca
Assume that \( f \) is a nonzero continuous function on the interval \([0, 1]\). Define \[ a_n = \int_0^1 [f(x)]^{2n} \text{ for } n=1,2,3,\cdots. \] Let \( L = \lim_{n \to \infty} \left(\frac{a_{n+1}}{a_n}\right) \). If \( f(x) = x^2 + 1 \), compute the value of \( L \).
[ "4" ]
[ "Assume that \\( f \\) is a nonzero continuous function on the interval \\([0, 1]\\). Define \n\\[ a_n = \\int_0^1 [f(x)]^{2n} \\text{ for } n=1,2,3,\\cdots. \\]\nLet \\( L = \\lim_{n \\to \\infty} \\left(\\frac{a_{n+1}}{a_n}\\right) \\).\nIf \\( f(x) = x^2 + 1 \\), compute the value of \\( L \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-992a58fc0893d1ce35e8bd394d84acae42fc7a3e586abc935a463778fef672d3
Assume that \( f \) is an entire function and \( |f(z)| < 1 \) for all \( z \in \mathbb{C} \). If \( f \) is not constant, find the value of \( \int_{|z|=1} f(z) \, dz \).
[ "0" ]
[ "Assume that \\( f \\) is an entire function and \\( |f(z)| < 1 \\) for all \\( z \\in \\mathbb{C} \\). If \\( f \\) is not constant, find the value of \\( \\int_{|z|=1} f(z) \\, dz \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-2f3d9cb4c5429131c6af4710c58692ab602a038fba2845fa3f5d61061df9a3b4
Assume that \( f \) is an entire function such that \( \text{Im}(f(z)) > 0 \) for all \( z \in \mathbb{C} \). Let \( g(z) = e^{-if(z)} \). Find the value of \( g(1) + g(i) \).
[ "0" ]
[ "Assume that \\( f \\) is an entire function such that \\( \\text{Im}(f(z)) > 0 \\) for all \\( z \\in \\mathbb{C} \\). Let \\( g(z) = e^{-if(z)} \\). Find the value of \\( g(1) + g(i) \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-75f0a6c4c49be0f9a0c298392b3d64cd8d8954bda1695390c1f24e9841cad5b9
Assume that \( f \) is an increasing function and \( a > 0 \) is a real number. Let \( g \) be the inverse function of \( f \). Define \( h(x) = f(x) + g(x) \) for \( x \in [0, a] \). Find the minimum value of \( h(x) \) over the interval \( [0, a] \).
[ "0" ]
[ "Assume that \\( f \\) is an increasing function and \\( a > 0 \\) is a real number. Let \\( g \\) be the inverse function of \\( f \\). Define \\( h(x) = f(x) + g(x) \\) for \\( x \\in [0, a] \\). Find the minimum value of \\( h(x) \\) over the interval \\( [0, a] \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 6, "genselect": 2 }
8
0
0
omr-ws-2ddd4d0d4e95fe3935d86a0195e6c202186a626a6b55557a0c8be6ea66e086e5
Assume that \( f \) is continuous on \([0,1]\), \( f(0) = 0 \), and \( f'(0) \) exists. Calculate the value of the Lebesgue integral \(\int_0^1 f(x) x^{-3/2} \, dx\) given that \( f(x) = x^2 \).
[ "\\dfrac{2}{3}" ]
[ "Assume that \\( f \\) is continuous on \\([0,1]\\), \\( f(0) = 0 \\), and \\( f'(0) \\) exists. Calculate the value of the Lebesgue integral \\(\\int_0^1 f(x) x^{-3/2} \\, dx\\) given that \\( f(x) = x^2 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-0eaee7af10977a7e862e9efc87cced390812d5d81aa962dfd724478b5798a912
Assume that \( f \) is continuous on \([a, b]\) and differentiable on \((a, b)\), and \( f(a) = f(b) = 0 \). For \( r = 3 \), find the number of possible values of \( c \in (a, b) \) such that \( f(c) \cdot 3 = f'(c) \).
[ "1" ]
[ "Assume that \\( f \\) is continuous on \\([a, b]\\) and differentiable on \\((a, b)\\), and \\( f(a) = f(b) = 0 \\). For \\( r = 3 \\), find the number of possible values of \\( c \\in (a, b) \\) such that \\( f(c) \\cdot 3 = f'(c) \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-0b302eba8a1ed03aa918d8ceb0d5cd0122e96be2cb8ff413b397f2cd4c3890c6
Assume that \( f \) is continuous on \([a, b]\) and is \( k \) times differentiable at \( a \) with \( f^{(i)}(a) = 0 \) for \( i = 1, 2, \dots, k-1 \) and \( f^{(k)}(a) \neq 0 \). If \( c_x \in (a, x) \) such that \( \int_a^x f(t) \, dt = f(c_x) (x - a) \), then find the value of \( \lim_{x \to a} \frac{c_x - a}{x - a...
[ "\\left( \\dfrac{1}{k+1} \\right)^{1/k}" ]
[ "Assume that \\( f \\) is continuous on \\([a, b]\\) and is \\( k \\) times differentiable at \\( a \\) with \\( f^{(i)}(a) = 0 \\) for \\( i = 1, 2, \\dots, k-1 \\) and \\( f^{(k)}(a) \\neq 0 \\). If \\( c_x \\in (a, x) \\) such that \\( \\int_a^x f(t) \\, dt = f(c_x) (x - a) \\), then find the value of \\( \\lim_...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-1e69d7dc9fcdf93d20e1999022500bd83095e58297220a315bb029ada6860b45
Assume that \( f \) is continuous on \([a, b]\) and is \( k \) times differentiable at \( a \) with \( f^{(i)}(a+) = 0 \) for \( 1 \leq i \leq k-1 \) and \( f^{(k)}(a) \neq 0 \). If \( c_x \in (a, x) \) is such that \( \int_{a}^{x} f(t) \, dt = f(c_x)(x-a) \), then find the value of \( \lim_{x \to a+} \frac{c_x - a}{x ...
[ "\\dfrac{1}{\\sqrt[k]{k+1}}" ]
[ "Assume that \\( f \\) is continuous on \\([a, b]\\) and is \\( k \\) times differentiable at \\( a \\) with \\( f^{(i)}(a+) = 0 \\) for \\( 1 \\leq i \\leq k-1 \\) and \\( f^{(k)}(a) \\neq 0 \\). If \\( c_x \\in (a, x) \\) is such that \\( \\int_{a}^{x} f(t) \\, dt = f(c_x)(x-a) \\), then find the value of \\( \\l...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-dd60415fdec90542b579ae8a014d030d7a9ab71c2768e11ed35f425602a2ae81
Assume that \( f \) is continuous on \([a, b]\), \( a > 0 \), and differentiable on \((a, b)\). If \( \frac{f(a)}{a} = \frac{f(b)}{b} \), then find the value of \( x \) in \((a, b)\) such that \( xf'(x) = f(x) \), given \( f(x) = x^3 - 3x^2 + 2x \), \( a = 1 \), and \( b = 2 \).
[ "\\dfrac{3}{2}" ]
[ "Assume that \\( f \\) is continuous on \\([a, b]\\), \\( a > 0 \\), and differentiable on \\((a, b)\\). If \\( \\frac{f(a)}{a} = \\frac{f(b)}{b} \\), then find the value of \\( x \\) in \\((a, b)\\) such that \\( xf'(x) = f(x) \\), given \\( f(x) = x^3 - 3x^2 + 2x \\), \\( a = 1 \\), and \\( b = 2 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-937de9a5e9b2b70833a1fd17c2c1b7117500c6961eef065c13d6c1ac1dbfd0e9
Assume that \( f \) is defined on \( (0, 1) \) and for any strictly increasing sequence \( x_n \) with \( \lim_{n \to \infty} x_n = 1 \), the limit \( \lim_{n \to \infty} f(x_n) = L_n \) exists. Let \( S \) be the set of all possible values of \( L_n \). If \( S \) contains exactly one element, find the value of \( \li...
[ "L" ]
[ "Assume that \\( f \\) is defined on \\( (0, 1) \\) and for any strictly increasing sequence \\( x_n \\) with \\( \\lim_{n \\to \\infty} x_n = 1 \\), the limit \\( \\lim_{n \\to \\infty} f(x_n) = L_n \\) exists. Let \\( S \\) be the set of all possible values of \\( L_n \\). If \\( S \\) contains exactly one elemen...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-25b377478381c64d13cd73f96de15beb2c11da1203152a906f305bed53c8debc
Assume that \( f \) is differentiable on the interval \((a, b)\) and has a local maximum at \( c \) within \((a, b)\). If \( f(c) = 5 \) and \( f'(x) = 3x^2 - 6x + k \), find the value of \( k \).
[ "-9" ]
[ "Assume that \\( f \\) is differentiable on the interval \\((a, b)\\) and has a local maximum at \\( c \\) within \\((a, b)\\). If \\( f(c) = 5 \\) and \\( f'(x) = 3x^2 - 6x + k \\), find the value of \\( k \\)." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 5, "genselect": 7 }
12
0
0
omr-ws-5b838d6d72b983ae17e914966d18e505a94c9cfbc6a11fbed2dd7ea46a80074f
Assume that \( f \) is integrable on \([a,b]\). Given \( f(x) = x^2 \), calculate the value of \[ \left| \int_a^b f(x) \, dx - (b-a)f(a) \right| \] for \( a = 1 \) and \( b = 3 \).
[ "\\dfrac{20}{3}" ]
[ "Assume that \\( f \\) is integrable on \\([a,b]\\). Given \\( f(x) = x^2 \\), calculate the value of \\[ \\left| \\int_a^b f(x) \\, dx - (b-a)f(a) \\right| \\] for \\( a = 1 \\) and \\( b = 3 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-889da9739f67eb7e9c5cd05503d41aa65c3c4ad3d25f21dbf5b52940c485b2d6
Assume that \( f \) is twice differentiable and \( f'' \) is continuous on \( (0, \infty) \). Suppose \[ \lim_{x \to \infty} x f(x) = 0 \quad \text{and} \quad \lim_{x \to \infty} x f''(x) = 0. \] Let \( g(x) = x f'(x) \). Find the value of \( \lim_{x \to \infty} g(x) \).
[ "0" ]
[ "Assume that \\( f \\) is twice differentiable and \\( f'' \\) is continuous on \\( (0, \\infty) \\). Suppose \n\\[\n\\lim_{x \\to \\infty} x f(x) = 0 \\quad \\text{and} \\quad \\lim_{x \\to \\infty} x f''(x) = 0.\n\\]\nLet \\( g(x) = x f'(x) \\). Find the value of \\( \\lim_{x \\to \\infty} g(x) \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-776232f3e3c474dfce52a5c3df43cb56a15a43ad4e2d27fa8c9f1c88462c001b
Assume that \( f \) is twice differentiable on \( \mathbb{R} \) and \( f, f', f'' \) are strictly increasing on \( \mathbb{R} \). For fixed \( a, b \) with \( a \leq b \), let \( x \to \xi(x) \), \( x > 0 \), be defined by the mean value theorem, that is, \[ \frac{f(b+x) - f(a-x)}{b-a+2x} = f'(\xi(x)). \] Calculate the...
[ "\\dfrac{e^3 + 5}{3(e^3 - 1)}" ]
[ "Assume that \\( f \\) is twice differentiable on \\( \\mathbb{R} \\) and \\( f, f', f'' \\) are strictly increasing on \\( \\mathbb{R} \\). For fixed \\( a, b \\) with \\( a \\leq b \\), let \\( x \\to \\xi(x) \\), \\( x > 0 \\), be defined by the mean value theorem, that is, \n\\[\n\\frac{f(b+x) - f(a-x)}{b-a+2x}...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-9a0802276fe04b0a867c9659e008f7def6367cea99bdf8365f5d6ebc5f261a03
Assume that \( f \) is univalent and analytic in \( |z| < 1 \) and is of the form \( f(z) = z + c_2 z^2 + \dots \). Let \( r = \frac{1}{2} \). Calculate the value of \( |f(z)| \) on \( |z| = r \) when \( f(z) = \frac{z}{(1 + e^{i\alpha}z)^2} \) for some real number \( \alpha \). Express your answer as a simplified frac...
[ "2" ]
[ "Assume that \\( f \\) is univalent and analytic in \\( |z| < 1 \\) and is of the form \\( f(z) = z + c_2 z^2 + \\dots \\). Let \\( r = \\frac{1}{2} \\). Calculate the value of \\( |f(z)| \\) on \\( |z| = r \\) when \\( f(z) = \\frac{z}{(1 + e^{i\\alpha}z)^2} \\) for some real number \\( \\alpha \\). Express your a...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 8 }
15
0
0
omr-ws-7ac631c006790f466b4ff6a7bf4bc653d28f61107499ac671ea80a4257496de6
Assume that \( f \in R(\alpha) \) (i.e., is Riemann-Stieltjes integrable) on \([a,b]\). Let \(\{P_n\}\) be a sequence of polynomials such that: \[ \lim_{n\to\infty} \int_a^b |f - P_n| \, d\alpha = 0 \] Given \( f(x) = x^2 \) and \( \alpha(x) = x^3 \) on \([0,1]\), find the smallest integer \( N \) such that for all \( ...
[ "2" ]
[ "Assume that \\( f \\in R(\\alpha) \\) (i.e., is Riemann-Stieltjes integrable) on \\([a,b]\\). Let \\(\\{P_n\\}\\) be a sequence of polynomials such that:\n\n\\[ \\lim_{n\\to\\infty} \\int_a^b |f - P_n| \\, d\\alpha = 0 \\]\n\nGiven \\( f(x) = x^2 \\) and \\( \\alpha(x) = x^3 \\) on \\([0,1]\\), find the smallest i...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 6, "genselect": 1 }
7
0
0
omr-ws-efe4e753516f25c0b3c3b81e858daa9e35d4fa16f9e95b76f7b90e9ec298ee3a
Assume that \( f(x) = 8x^3 + ax^2 + bx - 1 \). Find \( a \) and \( b \) such that \( f\left(\frac{1}{2}\right) = 0 \) and the order of convergence of Newton's method for finding the root \( x = \frac{1}{2} \) with suitable \( x_0 \) is exactly one.
[ "b = 6" ]
[ "Assume that \\( f(x) = 8x^3 + ax^2 + bx - 1 \\). Find \\( a \\) and \\( b \\) such that \\( f\\left(\\frac{1}{2}\\right) = 0 \\) and the order of convergence of Newton's method for finding the root \\( x = \\frac{1}{2} \\) with suitable \\( x_0 \\) is exactly one." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 14 }
14
0
0
omr-ws-50779a703ef9850d160e540ad6684bc848f7869ec1fce5b822cc8c6d0dd87b78
Assume that \( f(x) \) and \( g(x) \) are continuous functions on \( \mathbb{R} \) and \( f(g(x)) = g(f(x)) \) for all \( x \in \mathbb{R} \). Given that \( f(x) = g(x) \) has no real roots, calculate the number of real roots of the equation \( f(f(x)) = g(g(x)) \).
[ "0" ]
[ "Assume that \\( f(x) \\) and \\( g(x) \\) are continuous functions on \\( \\mathbb{R} \\) and \\( f(g(x)) = g(f(x)) \\) for all \\( x \\in \\mathbb{R} \\). Given that \\( f(x) = g(x) \\) has no real roots, calculate the number of real roots of the equation \\( f(f(x)) = g(g(x)) \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-f7e1a8f564b45bb44096af66518c2935b29de05d13c1be8f4be6049009b0bb49
Assume that \( f(x) \) is an increasing function and \( n \in \mathbb{N} \). Let \( S_n = \frac{1}{n} \sum_{k=1}^n f\left(\frac{k}{n}\right) \) and \( I = \int_0^1 f(x) \, dx \). Calculate the value of \( S_5 - I \) for the function \( f(x) = x^2 \).
[ "\\dfrac{8}{75}" ]
[ "Assume that \\( f(x) \\) is an increasing function and \\( n \\in \\mathbb{N} \\). Let \\( S_n = \\frac{1}{n} \\sum_{k=1}^n f\\left(\\frac{k}{n}\\right) \\) and \\( I = \\int_0^1 f(x) \\, dx \\). Calculate the value of \\( S_5 - I \\) for the function \\( f(x) = x^2 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-5649a323a42901f3dd6b59a1a89f1b95947193ef5763869a865c8b6599bae95d
Assume that \( f(x) \in C^\infty (-a,a) \), and the sequence \( f^{(n)}(x) \) (which means the \( n \)-th derivative) is uniformly convergent to \( \phi(x) \) for \( x \in (-a,a) \). If \( f(x) = e^x \), find the value of \( C \) such that \( \phi(x) = Ce^x \).
[ "1" ]
[ "Assume that \\( f(x) \\in C^\\infty (-a,a) \\), and the sequence \\( f^{(n)}(x) \\) (which means the \\( n \\)-th derivative) is uniformly convergent to \\( \\phi(x) \\) for \\( x \\in (-a,a) \\). If \\( f(x) = e^x \\), find the value of \\( C \\) such that \\( \\phi(x) = Ce^x \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-3785c37e9ff718e922284e1f7170ecc69b3a525676feb12f6fe452ca592ca6ab
Assume that \( f(x,y) \) is \( C^1 \) and the function \( g(x,y) = f(x,y) - \frac{1}{2} (x^2 - y^2 - 2xy) \) attains a local minimum at \((0,0)\). Could the \( 2 \times 2 \) identity matrix be the Hessian of \( f \) at the origin?
[ "No" ]
[ "Assume that \\( f(x,y) \\) is \\( C^1 \\) and the function \\( g(x,y) = f(x,y) - \\frac{1}{2} (x^2 - y^2 - 2xy) \\) attains a local minimum at \\((0,0)\\). Could the \\( 2 \\times 2 \\) identity matrix be the Hessian of \\( f \\) at the origin?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 27 }
43
0
0
omr-ws-cd1254273f4cfb55e48c69fc9f8b7fed733aa8f274a9cb231a5e5d13fff6a01e
Assume that \( f, g: [0, 1] \rightarrow [0,1] \) are continuous functions satisfying \( f(g(x)) = g(f(x)) \) for all \( x \in [0, 1] \). Let \( h(x) = f(x) - g(x) \). Find the number of distinct points \( x_0 \in [0,1] \) such that \( h(x_0) = 0 \).
[ "1" ]
[ "Assume that \\( f, g: [0, 1] \\rightarrow [0,1] \\) are continuous functions satisfying \\( f(g(x)) = g(f(x)) \\) for all \\( x \\in [0, 1] \\). Let \\( h(x) = f(x) - g(x) \\). Find the number of distinct points \\( x_0 \\in [0,1] \\) such that \\( h(x_0) = 0 \\)." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 1 }
1
0
0
omr-ws-90f7bda7c7d9a0965d3e276aa620a829601752a3cd16e74a660032111435b2ac
Assume that \( f, g: [0,1] \rightarrow [0,1] \) are two continuous functions such that \( f(g(x)) = g(f(x)) \) for all \( x \in [0,1] \). Let \( h(x) = f(x) - g(x) \). Find the minimum number of zeros that \( h(x) \) must have in the interval \( [0,1] \).
[ "1" ]
[ "Assume that \\( f, g: [0,1] \\rightarrow [0,1] \\) are two continuous functions such that \\( f(g(x)) = g(f(x)) \\) for all \\( x \\in [0,1] \\). Let \\( h(x) = f(x) - g(x) \\). Find the minimum number of zeros that \\( h(x) \\) must have in the interval \\( [0,1] \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-61944ec6cf803307ac1565b2b9bb45183f2196ec840899f8f2e8457cadd6bba9
Assume that \( f: (0,+\infty) \mapsto \mathbb{R} \) is a bounded and differentiable function such that \( f(x)f'(x) \geq \cos x \) for all \( x > 0 \). Let \( M \) be the maximum possible value of \( |f(x)| \) for \( x > 0 \). Find the smallest possible value of \( M \).
[ "2" ]
[ "Assume that \\( f: (0,+\\infty) \\mapsto \\mathbb{R} \\) is a bounded and differentiable function such that \\( f(x)f'(x) \\geq \\cos x \\) for all \\( x > 0 \\). Let \\( M \\) be the maximum possible value of \\( |f(x)| \\) for \\( x > 0 \\). Find the smallest possible value of \\( M \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-f1364b6e740e3b9b85cd8000adb85a22ff745ae845eaa6db49247f5a857eb299
Assume that \( f: [0,1] \rightarrow \mathbb{R} \) is a differentiable function for which there exist \( a, b \in (0,1) \) such that \( \int_0^a f(t) \, dt = \int_b^1 f(t) \, dt = 0 \). Let \( M = \sup \{ |f'(x)| : x \in [0,1] \} \). Calculate the maximum possible value of \( \left| \int_0^1 f(t) \, dt \right| \) given ...
[ "\\dfrac{M}{18}" ]
[ "Assume that \\( f: [0,1] \\rightarrow \\mathbb{R} \\) is a differentiable function for which there exist \\( a, b \\in (0,1) \\) such that \\( \\int_0^a f(t) \\, dt = \\int_b^1 f(t) \\, dt = 0 \\). Let \\( M = \\sup \\{ |f'(x)| : x \\in [0,1] \\} \\). Calculate the maximum possible value of \\( \\left| \\int_0^1 f...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-7b4cc79fc0c2b3335f090eade63ba2ff9b4292fd11aa0415287fed0932b0b535
Assume that \( f: [0,2] \to \mathbb{R} \) is a continuous function and \( f(0) = f(2) \). Define \( g(x) = f(x+1) - f(x) \) for \( x \in [0,1] \). Calculate the value of \( \int_0^1 g(x) \, dx \).
[ "no_valid_answer_found" ]
[ "Assume that \\( f: [0,2] \\to \\mathbb{R} \\) is a continuous function and \\( f(0) = f(2) \\). Define \\( g(x) = f(x+1) - f(x) \\) for \\( x \\in [0,1] \\). Calculate the value of \\( \\int_0^1 g(x) \\, dx \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-b4976cd604b970370fa7042e7f56ece39d8ffda96e265ef018ceb50e31bfdef1
Assume that \( f: \mathbb{R}^2 \to \mathbb{R} \) is continuous and differentiable, with partial derivatives \( f_x \) and \( f_y \). Let \( u = -y f_x + x f_y \) and \( I(a) = \iint_{D_a} u(x,y) \, \mathrm{d}x \, \mathrm{d}y \), where \( D_a = \{(x,y) : (x-2\cos a)^2 + (y-2\sin a)^2 \le 1\} \). Find the value of \( I(a...
[ "0" ]
[ "Assume that \\( f: \\mathbb{R}^2 \\to \\mathbb{R} \\) is continuous and differentiable, with partial derivatives \\( f_x \\) and \\( f_y \\). Let \\( u = -y f_x + x f_y \\) and \\( I(a) = \\iint_{D_a} u(x,y) \\, \\mathrm{d}x \\, \\mathrm{d}y \\), where \\( D_a = \\{(x,y) : (x-2\\cos a)^2 + (y-2\\sin a)^2 \\le 1\\}...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-7dda686d056d461d0b2f6ae7a2af5dba8e111a0b94be390b213b919da191659b
Assume that \( f: \mathbb{R}^2 \to \mathbb{R} \) is differentiable with \( a(x,y) \) and \( b(x,y) \) as its partial derivatives with respect to \( x \) and \( y \), respectively. There exists a constant \( C > 0 \) such that for all \( |h| + |k| \le 1 \) and for all \( x, y \in \mathbb{R} \), \[ \left| f(x+h, y+k) - f...
[ "\\left( \\dfrac{0.01}{2C} \\right)^2" ]
[ "Assume that \\( f: \\mathbb{R}^2 \\to \\mathbb{R} \\) is differentiable with \\( a(x,y) \\) and \\( b(x,y) \\) as its partial derivatives with respect to \\( x \\) and \\( y \\), respectively. There exists a constant \\( C > 0 \\) such that for all \\( |h| + |k| \\le 1 \\) and for all \\( x, y \\in \\mathbb{R} \\)...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 3, "genselect": 2 }
5
0
0
omr-ws-cefff83daf9b344727b4faf4bd10f314fbbcde30146357134dcb47a11a888b9a
Assume that \( f: \mathbb{R}^n \rightarrow \mathbb{R}^n \) is \( C^1 \) and the derivative at each point is invertible. If the norm of \( Df_x^{-1} \) for all \( x \) is greater than \( c > 0 \), find the minimum value of \( c \) such that \( f \) is guaranteed to be injective.
[ "0" ]
[ "Assume that \\( f: \\mathbb{R}^n \\rightarrow \\mathbb{R}^n \\) is \\( C^1 \\) and the derivative at each point is invertible. If the norm of \\( Df_x^{-1} \\) for all \\( x \\) is greater than \\( c > 0 \\), find the minimum value of \\( c \\) such that \\( f \\) is guaranteed to be injective." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 6 }
10
0
0
omr-ws-cfc4e04f1fc47fbf29cb15919faa2dfe0633dc7abb4e4366ba503ddc74a9fb75
Assume that \( f:(a,\infty) \to \mathbb{R} \). Let \( T \) be a given positive real number. Define the sequence \( \{x_n\} \) such that \( \lim_{n \to \infty} x_n = \infty \) and \( \lim_{n \to \infty} (f(T + x_n) - f(x_n)) = 0 \). Calculate the limit \(\lim_{n \to \infty} \frac{f(x_n + T) - f(x_n)}{T}\).
[ "0" ]
[ "Assume that \\( f:(a,\\infty) \\to \\mathbb{R} \\). Let \\( T \\) be a given positive real number. Define the sequence \\( \\{x_n\\} \\) such that \\( \\lim_{n \\to \\infty} x_n = \\infty \\) and \\( \\lim_{n \\to \\infty} (f(T + x_n) - f(x_n)) = 0 \\). Calculate the limit \\(\\lim_{n \\to \\infty} \\frac{f(x_n + ...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-cf7d290740365fed3c929f04137a6510b0ce861a6f23921d2c08cd75fd1e7d28
Assume that \( f:[a,\infty) \to \mathbb{R} \) is continuous and periodic with period \( T > 0 \), and \( g:[a,\infty) \to \mathbb{R} \) is monotonic with \( \lim\limits_{x \to \infty} g(x) = 0 \). Given that \( \int_a^{a+T} f(x) \, dx = 0 \), calculate the value of the integral \( \int_0^\infty f(x) g(x) \, dx \) if \(...
[ "0" ]
[ "Assume that \\( f:[a,\\infty) \\to \\mathbb{R} \\) is continuous and periodic with period \\( T > 0 \\), and \\( g:[a,\\infty) \\to \\mathbb{R} \\) is monotonic with \\( \\lim\\limits_{x \\to \\infty} g(x) = 0 \\). Given that \\( \\int_a^{a+T} f(x) \\, dx = 0 \\), calculate the value of the integral \\( \\int_0^\\...
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 3, "genselect": 8 }
11
0
0
omr-ws-b2fe704485df41bb1dfab1a39b4750e64ca66bf054877db17e11ad9481113b6c
Assume that \( g(x) \) is a polynomial with integer coefficients. The function \( f: \mathbb{Z} \rightarrow \mathbb{Z} \) satisfies the following conditions for all \( m, n \in \mathbb{Z} \): \[ \begin{cases} f(m) + f(f(n)) = -f(f(m+n)) - n \\ g(n) = g(f(n)) \end{cases} \] Find \( g(x) \).
[ "0" ]
[ "Assume that \\( g(x) \\) is a polynomial with integer coefficients. The function \\( f: \\mathbb{Z} \\rightarrow \\mathbb{Z} \\) satisfies the following conditions for all \\( m, n \\in \\mathbb{Z} \\):\n\\[ \\begin{cases} \nf(m) + f(f(n)) = -f(f(m+n)) - n \\\\\ng(n) = g(f(n)) \n\\end{cases} \\]\nFind \\( g(x) \\)...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 12, "genselect": 3 }
15
0
0
omr-ws-aeda77ae3cdd4dad7b30beb8fe49b5032afd7545a54eb16d801c5823faaa6df4
Assume that \( m, n, r \) are positive integers such that \((2+\sqrt{3})^{2r-1} = 1 + m + n\sqrt{3}\). Calculate the value of \( m \) when \( r = 5 \).
[ "70225" ]
[ "Assume that \\( m, n, r \\) are positive integers such that \\((2+\\sqrt{3})^{2r-1} = 1 + m + n\\sqrt{3}\\). Calculate the value of \\( m \\) when \\( r = 5 \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-ef94d04ea49a5f1b36d7081bb60b84d8a09b67cece363ed0041e8d20732eedb3
Assume that \( n \) copies of unit cubes are glued together side by side to form a rectangular solid block. If the number of unit cubes that are completely invisible is 30, then what is the minimum possible value of \( n \)?
[ "140" ]
[ "Assume that \\( n \\) copies of unit cubes are glued together side by side to form a rectangular solid block. If the number of unit cubes that are completely invisible is 30, then what is the minimum possible value of \\( n \\)?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 32, "tir": 16 }
48
0
0
omr-ws-49b44d0eddc6168029fcb5398110c98556f9935ef5aa32e9b8874fba24a9b15a
Assume that \( n \) is a positive odd number. Let \( A = \{ a \in \mathbb{Z} : (a, n) = 1, 1 \le a \le \frac{n}{4} \} \). Find all \( n \) such that the cardinality of \( A \) is odd.
[ "n = p^k \\text{ where } p \\equiv 5 \\text{ or } 7 \\pmod{8} \\text{ and } k \\geq 1" ]
[ "Assume that \\( n \\) is a positive odd number. Let \\( A = \\{ a \\in \\mathbb{Z} : (a, n) = 1, 1 \\le a \\le \\frac{n}{4} \\} \\). Find all \\( n \\) such that the cardinality of \\( A \\) is odd." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 9, "genselect": 3 }
12
0
0
omr-ws-016ef5d42a1a7106992c842f4b3d41db23f18206d0ab61b52a56354ee7e0e223
Assume that \( n^\alpha a_n \to 0 \) and \( a_n \to 0 \) as \( n \to \infty \). Given that \( \sum a_n \) diverges, calculate the value of \( \alpha \) for which the series \( \sum \frac{a_n}{1 + n^\alpha a_n} \) converges, assuming \( a_n = \frac{1}{n \log n} \).
[ "\\alpha > 1" ]
[ "Assume that \\( n^\\alpha a_n \\to 0 \\) and \\( a_n \\to 0 \\) as \\( n \\to \\infty \\). Given that \\( \\sum a_n \\) diverges, calculate the value of \\( \\alpha \\) for which the series \\( \\sum \\frac{a_n}{1 + n^\\alpha a_n} \\) converges, assuming \\( a_n = \\frac{1}{n \\log n} \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-233b5758c80bf6353d0e745838b7bf80f5f6a06c88d9d033b28c8d04f25c5d54
Assume that \( p \) is a prime and \( p^m \) divides \( n! \). Calculate the largest possible value of \( m \) when \( n = 100 \) and \( p = 3 \).
[ "48" ]
[ "Assume that \\( p \\) is a prime and \\( p^m \\) divides \\( n! \\). Calculate the largest possible value of \\( m \\) when \\( n = 100 \\) and \\( p = 3 \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-e6d957f1ccbd4b5a111cd88729409ddd4c66d23afa62d04be9479133b0583ca4
Assume that \( p \) is a prime number with \( p \equiv 3 \mod 4 \). Let \( P(p) = \prod_{1 \leq x < y \leq \frac{p-1}{2}} \left(x^2 + y^2\right) \mod p \). Calculate \( P(11) \).
[ "10" ]
[ "Assume that \\( p \\) is a prime number with \\( p \\equiv 3 \\mod 4 \\). Let \\( P(p) = \\prod_{1 \\leq x < y \\leq \\frac{p-1}{2}} \\left(x^2 + y^2\\right) \\mod p \\). Calculate \\( P(11) \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-cb4e1b22f1a57833a97cda55eb82fd04881f41f8179849c8ac2f1514619011b4
Assume that \( p \) is a prime. Find the smallest integer \( m > 1 \) such that \( p^m \) does not divide \( 1! + 2! + \cdots + (mp-1)! \) for \( p = 3 \).
[ "3" ]
[ "Assume that \\( p \\) is a prime. Find the smallest integer \\( m > 1 \\) such that \\( p^m \\) does not divide \\( 1! + 2! + \\cdots + (mp-1)! \\) for \\( p = 3 \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-32e08db6e4aab201975b8431bb58fea35caa53b1d672e7bcb600b5b1e5228a6b
Assume that \( p \) is an odd prime and \( G \) is a finite simple group with exactly \( 2p + 1 \) Sylow \( p \)-subgroups. Let \( P \) be a Sylow \( p \)-subgroup of \( G \). If \( P \) is abelian, calculate the number of distinct elements of order \( p \) in \( P \).
[ "p^2 - 1" ]
[ "Assume that \\( p \\) is an odd prime and \\( G \\) is a finite simple group with exactly \\( 2p + 1 \\) Sylow \\( p \\)-subgroups. Let \\( P \\) be a Sylow \\( p \\)-subgroup of \\( G \\). If \\( P \\) is abelian, calculate the number of distinct elements of order \\( p \\) in \\( P \\)." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 5 }
9
0
0
omr-ws-807b62125acf04c7ce7a8b374398d93754eff4e596a1a24724f7bd50e4d8c6a0
Assume that \( p, q, a, b, c \) are positive integers such that \( p + q \geqslant c \). Calculate the value of the expression \[ \sum_{x} {p \choose x} {q \choose c - x} (a + p - x)(b + q - c + x) - {p + q \choose c} (a + p + q - c) b, \] where the summation on the right side holds for \( 0 \leqslant x \leqslant p \) ...
[ "252" ]
[ "Assume that \\( p, q, a, b, c \\) are positive integers such that \\( p + q \\geqslant c \\). Calculate the value of the expression\n\\[\n\\sum_{x} {p \\choose x} {q \\choose c - x} (a + p - x)(b + q - c + x) - {p + q \\choose c} (a + p + q - c) b,\n\\]\nwhere the summation on the right side holds for \\( 0 \\leqs...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-6cb05a71cccd2d7df457537066279cb278358e95de0a6d64d7a9b84b2591fdb4
Assume that \( s, t \geq 1 \) and \( \frac{1}{s} + \frac{1}{t} = \frac{\log 3}{\log 2} \). Let \( f(x) = 1 + x + x^2 - (1 + x^s)^{1/s} (1 + x^t)^{1/t} \). Find the maximum value of \( s + t \) such that \( f(x) \geq 0 \) for all \( x \in [0,1] \).
[ "3" ]
[ "Assume that \\( s, t \\geq 1 \\) and \\( \\frac{1}{s} + \\frac{1}{t} = \\frac{\\log 3}{\\log 2} \\). Let \\( f(x) = 1 + x + x^2 - (1 + x^s)^{1/s} (1 + x^t)^{1/t} \\). Find the maximum value of \\( s + t \\) such that \\( f(x) \\geq 0 \\) for all \\( x \\in [0,1] \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 2 }
2
0
0
omr-ws-a5e3f9965f02bd932ffcd2872d087e532d6b79ada29ba857e376ef6e8b98f78d
Assume that \( x, y \ge 0 \). Find the maximum value of the expression \( x^2 + y^2 + 1 - \sqrt{(x^3 + y + 1)(y^3 + x + 1)} \).
[ "0" ]
[ "Assume that \\( x, y \\ge 0 \\). Find the maximum value of the expression \\( x^2 + y^2 + 1 - \\sqrt{(x^3 + y + 1)(y^3 + x + 1)} \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-117ffe8d3e1e07275b9073f1d22cee56582675d4f0217da5f05e488378d695db
Assume that \( x_0, x_1, \dots, x_n \) are \( n+1 \) distinct real (or complex) numbers, with \( x_i \ne 0 \), \( x_i \ne 1 \), and \( x_i \ne -1 \) for all \( i \). Let \( f(x) = \prod_{i=0}^{n} (x - x_i) \). Calculate the value of: \[ \prod_{i=0}^{n} \frac{x_i^{n+1}}{f'(x_i)} \cdot \frac{f(x_i^{-1})}{1 + x_i} \] for ...
[ "-1" ]
[ "Assume that \\( x_0, x_1, \\dots, x_n \\) are \\( n+1 \\) distinct real (or complex) numbers, with \\( x_i \\ne 0 \\), \\( x_i \\ne 1 \\), and \\( x_i \\ne -1 \\) for all \\( i \\). Let \\( f(x) = \\prod_{i=0}^{n} (x - x_i) \\). Calculate the value of:\n\\[\n\\prod_{i=0}^{n} \\frac{x_i^{n+1}}{f'(x_i)} \\cdot \\fra...
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 2 }
2
0
0
omr-ws-eee02cee54a23f489aad0b42e5cbb76574bd849384df4fb3135a105ee2aa2e87
Assume that \( x_1, \ldots, x_n \) are distinct integers greater than 1. Define \( a_{ij} = \sin^2 \left( \frac{j \cdot \pi}{x_i} \right) \). Calculate the determinant of the matrix \( A = (a_{ij}) \) for \( n = 4 \) and \( x_i = i + 1 \) for \( i = 1, 2, 3, 4 \).
[ "\\dfrac{3(5 + \\sqrt{5})}{32}" ]
[ "Assume that \\( x_1, \\ldots, x_n \\) are distinct integers greater than 1. Define \\( a_{ij} = \\sin^2 \\left( \\frac{j \\cdot \\pi}{x_i} \\right) \\). Calculate the determinant of the matrix \\( A = (a_{ij}) \\) for \\( n = 4 \\) and \\( x_i = i + 1 \\) for \\( i = 1, 2, 3, 4 \\)." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-69fa9d40a377d726bee5d0abf70070062481f59a88d90a37f437b0f63399b84d
Assume that \( x_n \ge 0 \) and \( x_{n+1} = \sqrt{2 + x_n} \). Compute \( \lim_{n \rightarrow \infty} 4^n (2 - x_n) \).
[ "\\dfrac{16}{9}" ]
[ "Assume that \\( x_n \\ge 0 \\) and \\( x_{n+1} = \\sqrt{2 + x_n} \\). Compute \\( \\lim_{n \\rightarrow \\infty} 4^n (2 - x_n) \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-fc4ec5967d3f9ae8dfa2456063f745702cb1d09a77acb81cd63f15088ee1ab9b
Assume that \( y \) is a differentiable function of \( x \) and that \( x^2 + 2xy^2 = 4 - ye^y \). Find the slope(s) of the curve at \( y = 0 \).
[ "\\(\\pm 4\\)" ]
[ "Assume that \\( y \\) is a differentiable function of \\( x \\) and that \\( x^2 + 2xy^2 = 4 - ye^y \\). Find the slope(s) of the curve at \\( y = 0 \\)." ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 4, "tir": 22 }
26
0
0
omr-ws-8036796e8a8b737c35e71fb86772a22ea4a4375f617a454351e5762f416fdf4d
Assume that \(-\frac{\pi}{2} \leq u \leq v \leq \frac{\pi}{2}\) and \(u, v \neq -\frac{\pi}{2}, \frac{\pi}{2}\). Let \(f(x) = a \cos x + b \sin 2x + c \cos 3x - x\). Find the minimum value of \(|a| + |b| + |c|\) such that \(f(x)\) has no zero in \([u, v]\) for any \(u, v\) satisfying the given conditions.
[ "2" ]
[ "Assume that \\(-\\frac{\\pi}{2} \\leq u \\leq v \\leq \\frac{\\pi}{2}\\) and \\(u, v \\neq -\\frac{\\pi}{2}, \\frac{\\pi}{2}\\). Let \\(f(x) = a \\cos x + b \\sin 2x + c \\cos 3x - x\\). Find the minimum value of \\(|a| + |b| + |c|\\) such that \\(f(x)\\) has no zero in \\([u, v]\\) for any \\(u, v\\) satisfying t...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 3, "genselect": 6 }
9
0
0
omr-ws-ffb0628a58fee9b0db7963436f100b0ba5d0c1cb2717506c917ab13956b7b4fc
Assume that \(P(n) = \alpha^n + \beta^n\) can be expressed as a polynomial in \(\alpha\beta\) and \(\alpha + \beta\). Let \(S_n\) denote the sum of its coefficients. Find \(S_n\).
[ "\\(S_n\\) is periodic with period 6, and the values are \\(2, 1, -1, -2, -1, 1\\)." ]
[ "Assume that \\(P(n) = \\alpha^n + \\beta^n\\) can be expressed as a polynomial in \\(\\alpha\\beta\\) and \\(\\alpha + \\beta\\). Let \\(S_n\\) denote the sum of its coefficients. Find \\(S_n\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 18 }
34
0
0
omr-ws-eda6c333b294d792a12e3bec1c9c564db9702227503a9aeeaa600037eba9863e
Assume that \(X\) and \(Y\) are identically distributed from a continuous function \(F\). Calculate \(E\left(\frac{X}{Y}\right) - 1\) and express your answer as a function of \(F\).
[ " \\left( \\int x \\, dF(x) \\right) \\left( \\int \\frac{1}{x} \\, dF(x) \\right) - 1 " ]
[ "Assume that \\(X\\) and \\(Y\\) are identically distributed from a continuous function \\(F\\). Calculate \\(E\\left(\\frac{X}{Y}\\right) - 1\\) and express your answer as a function of \\(F\\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-7167d58a9074fadde56d704bf3719f6e50e67165578d9d6c80600673c636921a
Assume that \(\alpha = \beta = \gamma = 90^\circ\) for a trihedral angle \( Sxyz \). Let \( O \in Sz \) be a fixed point such that \( SO = a \), and let \( M, N \) be variable points on \( x, y \) respectively. If \( \theta = \angle SOM + \angle SON + \angle MON \), find the value of \( \theta \). Additionally, if \( I...
[ "180^\\circ" ]
[ "Assume that \\(\\alpha = \\beta = \\gamma = 90^\\circ\\) for a trihedral angle \\( Sxyz \\). Let \\( O \\in Sz \\) be a fixed point such that \\( SO = a \\), and let \\( M, N \\) be variable points on \\( x, y \\) respectively. If \\( \\theta = \\angle SOM + \\angle SON + \\angle MON \\), find the value of \\( \\t...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-9de784b42f73af55b239bc51449f6e58fa2513b02e37045cc81e2903248af09e
Assume that \(a < b \le c < d\), \(ad = bc\), and \(\sqrt{d} - \sqrt{a} \le 1\) for some \(a, b, c, d \in \{1, 2, 3, \dots\}\). If \(a\) is a square of an integer, find the smallest possible value of \(d\) when \(a = 4\).
[ "9" ]
[ "Assume that \\(a < b \\le c < d\\), \\(ad = bc\\), and \\(\\sqrt{d} - \\sqrt{a} \\le 1\\) for some \\(a, b, c, d \\in \\{1, 2, 3, \\dots\\}\\). If \\(a\\) is a square of an integer, find the smallest possible value of \\(d\\) when \\(a = 4\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-e3440df25c646bbe538e6530fda04d607482ccc73bcede2c1275aad4388c7aab
Assume that \(a, b, c > 0\) and \(\frac{1}{x} + \frac{1}{y} + \frac{1}{z} \leq 3\). Given \(x = a^2\), \(y = b^2\), and \(z = c^2\), calculate the minimum value of the expression \(ab^2c + bc^2a + ca^2b - (a^2 + b^2 + c^2)\).
[ "0" ]
[ "Assume that \\(a, b, c > 0\\) and \\(\\frac{1}{x} + \\frac{1}{y} + \\frac{1}{z} \\leq 3\\). Given \\(x = a^2\\), \\(y = b^2\\), and \\(z = c^2\\), calculate the minimum value of the expression \\(ab^2c + bc^2a + ca^2b - (a^2 + b^2 + c^2)\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 2 }
2
0
0
omr-ws-f6db5d4faba57cd5e7a070331a065792b4679a81d0c1038a1e14000bbc78dfd1
Assume that \(a, b, c, d > 0\). Calculate the minimum possible value of the expression \[ \frac{a^2 - bd}{b + d + 2c} + \frac{b^2 - ca}{c + a + 2d} + \frac{c^2 - db}{d + b + 2a} + \frac{d^2 - ac}{a + c + 2b}. \]
[ "0" ]
[ "Assume that \\(a, b, c, d > 0\\). Calculate the minimum possible value of the expression\n\\[\n\\frac{a^2 - bd}{b + d + 2c} + \\frac{b^2 - ca}{c + a + 2d} + \\frac{c^2 - db}{d + b + 2a} + \\frac{d^2 - ac}{a + c + 2b}.\n\\]" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 8 }
15
0
0
omr-ws-ed8d6178538207bb1d93e33775aa334f085599cea4d65cddcf91635d01ddcfb4
Assume that \(a, b, c, d\) are positive real numbers such that \((a+c)(b+d) = 4abcd\). Find the greatest value of the real \(q\) for which \[ abcd \geq 1 + q \left( \frac{(a-c)^2}{ac} + \frac{(b-d)^2}{bd} \right). \]
[ "0" ]
[ "Assume that \\(a, b, c, d\\) are positive real numbers such that \\((a+c)(b+d) = 4abcd\\). Find the greatest value of the real \\(q\\) for which\n\\[ abcd \\geq 1 + q \\left( \\frac{(a-c)^2}{ac} + \\frac{(b-d)^2}{bd} \\right). \\]" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-1fe4136008628e4340ee6c9d478d70f54a0a9452097c396534a2f5317d0be844
Assume that \(a, b, c, d\) are positive real numbers such that \(a^2 + b^2 + c^2 + d^2 = 1\). Calculate the minimum value of the expression \(101(a^3 + b^3 + c^3 + d^3) + 125abcd\).
[ "\\dfrac{933}{16}" ]
[ "Assume that \\(a, b, c, d\\) are positive real numbers such that \\(a^2 + b^2 + c^2 + d^2 = 1\\). Calculate the minimum value of the expression \\(101(a^3 + b^3 + c^3 + d^3) + 125abcd\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 7 }
7
0
0
omr-ws-71afc88c2fd5b314b2a20aee9c06d6618b70ae5267c7fcd459ab5604a30a002c
Assume that \(a, b, c,\) and \(d\) are positive integers such that \(a^5 = b^4\), \(c^3 = d^2\), and \(c - a = 19\). Determine \(d - b\).
[ "757" ]
[ "Assume that \\(a, b, c,\\) and \\(d\\) are positive integers such that \\(a^5 = b^4\\), \\(c^3 = d^2\\), and \\(c - a = 19\\). Determine \\(d - b\\)." ]
[ "aops_c5_contests_amp_programs" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-13ae6b72ca074a170c3b8dab76aaba3c6a325ae72d28e84e6dc6f1e6f7f669b2
Assume that \(a, b, c\) are positive numbers such that \(a + b + c = 3\). Calculate the minimum value of the expression \[ \frac{a}{b^2 + c^2} + \frac{b}{c^2 + a^2} + \frac{c}{a^2 + b^2}. \]
[ "\\dfrac{4}{3}" ]
[ "Assume that \\(a, b, c\\) are positive numbers such that \\(a + b + c = 3\\). Calculate the minimum value of the expression \n\\[\n\\frac{a}{b^2 + c^2} + \\frac{b}{c^2 + a^2} + \\frac{c}{a^2 + b^2}.\n\\]" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-e6a23aca324169c1351f7eea19059811fba1c0b6d72a3170025885ab258139a9
Assume that \(a, b, c\) are positive reals that cannot be the sides of a triangle. Calculate the minimum value of the expression \(\frac{(abc)^{2}(a+b+c)^{2}(a+b-c)(a-b+c)(-a+b+c)}{(a^{2}+b^{2}+c^{2})^{3}(a^{2}+b^{2}-c^{2})(a^{2}-b^{2}+c^{2})(-a^{2}+b^{2}+c^{2})}.\)
[ "0" ]
[ "Assume that \\(a, b, c\\) are positive reals that cannot be the sides of a triangle. Calculate the minimum value of the expression \\(\\frac{(abc)^{2}(a+b+c)^{2}(a+b-c)(a-b+c)(-a+b+c)}{(a^{2}+b^{2}+c^{2})^{3}(a^{2}+b^{2}-c^{2})(a^{2}-b^{2}+c^{2})(-a^{2}+b^{2}+c^{2})}.\\)" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-c766434c8533398eb5c6ac927f8b9f7910cf0543922b9530ee5c500eafbdf7c6
Assume that \(a\) and \(b\) are integers and \(n\) is a natural number. If \(2^n a + b\) is a perfect square for every \(n\), find the value of \(a + b\) given that \(b\) is the smallest positive integer such that this condition holds.
[ "1" ]
[ "Assume that \\(a\\) and \\(b\\) are integers and \\(n\\) is a natural number. If \\(2^n a + b\\) is a perfect square for every \\(n\\), find the value of \\(a + b\\) given that \\(b\\) is the smallest positive integer such that this condition holds." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-03f04c421c3557d61d37faf519ba4a370ee3603dc363ee6a21137e9d148ad83f
Assume that \(a\) and \(b\) are integers such that for all sufficiently large primes \(p\), there exists a permutation \(c_1, c_2, \ldots, c_{p-1}\) of the numbers \(1, 2, \ldots, p-1\) such that \[ p \mid ac_{i+1} - bc_i \] for \(i = 1, \ldots, p-2\). Determine the value of \(a^2 + b^2\).
[ "0" ]
[ "Assume that \\(a\\) and \\(b\\) are integers such that for all sufficiently large primes \\(p\\), there exists a permutation \\(c_1, c_2, \\ldots, c_{p-1}\\) of the numbers \\(1, 2, \\ldots, p-1\\) such that \n\\[ p \\mid ac_{i+1} - bc_i \\]\nfor \\(i = 1, \\ldots, p-2\\). Determine the value of \\(a^2 + b^2\\)." ...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-29ad9b4e07cb94a499ad104d71488ac4c296f6ab214dec7cab2b9d5a221e435f
Assume that \(a_n, b_n\) are sequences of distinct integers such that \(a_n\) contains arbitrarily long arithmetic progressions. If \(\sum_{n \geq 1} \frac{1}{1 + |a_n - b_n|}\) diverges, does \(b_n\) also contain arbitrarily long arithmetic progressions?
[ "Yes" ]
[ "Assume that \\(a_n, b_n\\) are sequences of distinct integers such that \\(a_n\\) contains arbitrarily long arithmetic progressions. If \\(\\sum_{n \\geq 1} \\frac{1}{1 + |a_n - b_n|}\\) diverges, does \\(b_n\\) also contain arbitrarily long arithmetic progressions?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-b3dc9085bbc24f2a589236615afb83bf653e9ce5eff90a1d146c600258e00dbd
Assume that \(a_n\) is a sequence of positive numbers satisfying \(a_n \ge (1-\delta_n)a_{n-1} + \delta_n a_{\left[\frac{n}{2}\right]}\) for \(n \ge 2\) where \(\delta_n \in (0,1)\) is some sequence. Can we guarantee that there exists a (possibly infinite) limit \(\lim_{n \to \infty} a_n\)?
[ "Yes" ]
[ "Assume that \\(a_n\\) is a sequence of positive numbers satisfying \\(a_n \\ge (1-\\delta_n)a_{n-1} + \\delta_n a_{\\left[\\frac{n}{2}\\right]}\\) for \\(n \\ge 2\\) where \\(\\delta_n \\in (0,1)\\) is some sequence. Can we guarantee that there exists a (possibly infinite) limit \\(\\lim_{n \\to \\infty} a_n\\)?" ...
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-78587b9de6a1c86975dd8ed09ec3bbf5d46773e145377cd4070f752de7a61995
Assume that \(x, y, z \in \mathbb{R^+} \cup \{0\}\) such that \(x^2 + y^2 + z^2 = 3\). Calculate the maximum value of the expression \(\sum \frac{x}{\sqrt{x^2 + y + z}}\).
[ "\\sqrt{3}" ]
[ "Assume that \\(x, y, z \\in \\mathbb{R^+} \\cup \\{0\\}\\) such that \\(x^2 + y^2 + z^2 = 3\\). Calculate the maximum value of the expression \\(\\sum \\frac{x}{\\sqrt{x^2 + y + z}}\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-8f0a1b82ef49f2beaac196963d7636fa29686337db6e157739e98b76c16bcfc1
Assume that \(x, y, z\) are positive real numbers such that \(xyz = 4(x + y + z)\) and \(xy + yz + zx = 44\). Find the minimum and maximum value of \(xyz(x + y + z)\).
[ "584 + 8\\sqrt{5}" ]
[ "Assume that \\(x, y, z\\) are positive real numbers such that \\(xyz = 4(x + y + z)\\) and \\(xy + yz + zx = 44\\). Find the minimum and maximum value of \\(xyz(x + y + z)\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-f100461f67fba35228513e407e61fea61f5d55996660c3097f2bc88956d61712
Assume that \(x, y,\) and \(z\) are positive real numbers that satisfy the equations: \[ x + y + xy = 8 \] \[ y + z + yz = 15 \] \[ z + x + zx = 35 \] Determine the value of \(x + y + z + xyz\).
[ "36" ]
[ "Assume that \\(x, y,\\) and \\(z\\) are positive real numbers that satisfy the equations:\n\\[ x + y + xy = 8 \\]\n\\[ y + z + yz = 15 \\]\n\\[ z + x + zx = 35 \\]\nDetermine the value of \\(x + y + z + xyz\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 12, "genselect": 8 }
20
0
0
omr-ws-ee0da1ff55cbb57792e8a0ef1d330ef15788d7b512e1834f78d354fa8d033967
Assume that a function $f$ is continuous on the closed interval $[0,1]$ and that $0 \leq f(x) \leq 1$ for all $x \in [0,1]$. Let $g(x) = f(x) - x$. Find the value of $g(c)$ where $c \in [0,1]$ is such that $f(c) = c$.
[ "0" ]
[ "Assume that a function $f$ is continuous on the closed interval $[0,1]$ and that $0 \\leq f(x) \\leq 1$ for all $x \\in [0,1]$. Let $g(x) = f(x) - x$. Find the value of $g(c)$ where $c \\in [0,1]$ is such that $f(c) = c$." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-4f1d614548b9ff0f898a61b18015bf1ce001e28e03f7ce191aef0f1ec33f6a57
Assume that a man’s profession can be classified as professional, skilled laborer, or unskilled laborer. The transition probabilities are as follows: - Sons of professional men: 80% professional, 10% skilled laborer, 10% unskilled laborer. - Sons of skilled laborers: 60% skilled laborer, 20% professional, 20% unskilled...
[ "\\(\\frac{3}{8}\\)" ]
[ "Assume that a man’s profession can be classified as professional, skilled laborer, or unskilled laborer. The transition probabilities are as follows:\n- Sons of professional men: 80% professional, 10% skilled laborer, 10% unskilled laborer.\n- Sons of skilled laborers: 60% skilled laborer, 20% professional, 20% un...
[ "aops_c7_college_math", "c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 25 }
41
0
0
omr-ws-bd242a859a4819b7c48fd4c631ec108d66d73ee43aeedf6166d6748cc02d8a32
Assume that a new light bulb will burn out after \( t \) hours, where \( t \) is chosen from \([0, \infty)\) with an exponential density \( f(t) = \lambda e^{-\lambda t} \). (a) Assume that \( \lambda = 0.01 \), and find the probability that the bulb will not burn out before \( T \) hours. This probability is often cal...
[ "100 \\ln 2" ]
[ "Assume that a new light bulb will burn out after \\( t \\) hours, where \\( t \\) is chosen from \\([0, \\infty)\\) with an exponential density \\( f(t) = \\lambda e^{-\\lambda t} \\).\n(a) Assume that \\( \\lambda = 0.01 \\), and find the probability that the bulb will not burn out before \\( T \\) hours. This pr...
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-22a575e1c8f31ffbcbe27773cfb3267b45ee4249a7b93f144e23ee6208a52825
Assume that a point $P$ inside the convex quadrilateral $ABCD$ satisfies $\angle APB = \angle DPC = 90^\circ$. Let $\odot O_1$ and $\odot O_2$ be the circumscribed circles of $\triangle APC$ and $\triangle BPD$ respectively. It is known that the line connecting the midpoints $E$ and $F$ of sides $AB$ and $CD$ passes th...
[ "72" ]
[ "Assume that a point $P$ inside the convex quadrilateral $ABCD$ satisfies $\\angle APB = \\angle DPC = 90^\\circ$. Let $\\odot O_1$ and $\\odot O_2$ be the circumscribed circles of $\\triangle APC$ and $\\triangle BPD$ respectively. It is known that the line connecting the midpoints $E$ and $F$ of sides $AB$ and $C...
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 4 }
4
0
0
omr-ws-fa81a28e6aa7009b6debb129821c3c2eb6ae7eee8c275cde0de6a97e6867a326
Assume that all the angles of a given triangle \(ABC\) are smaller than \(120^\circ\). Equilateral triangles \(AFB\), \(BDC\), and \(CEA\) are constructed in the exterior of \(\triangle ABC\). The lines \(AD\), \(BE\), and \(CF\) intersect at a point \(S\). If \(SA = 5\), \(SB = 7\), and \(SC = 9\), calculate the value...
[ "42" ]
[ "Assume that all the angles of a given triangle \\(ABC\\) are smaller than \\(120^\\circ\\). Equilateral triangles \\(AFB\\), \\(BDC\\), and \\(CEA\\) are constructed in the exterior of \\(\\triangle ABC\\). The lines \\(AD\\), \\(BE\\), and \\(CF\\) intersect at a point \\(S\\). If \\(SA = 5\\), \\(SB = 7\\), and ...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 5 }
9
0
0
omr-ws-81229d2e0231a3c3643d75b4af8d4434a2ffbb4fa1b854c5ad66a0ad77e9acc9
Assume that all the roots of the polynomial \( x^8 + a_7 x^7 + a_6 x^6 + a_5 x^5 + a_4 x^4 + a_3 x^3 + a_2 x^2 + a_1 x + 420 \) are positive integers. What is the maximum number of distinct roots of such a polynomial?
[ "5" ]
[ "Assume that all the roots of the polynomial \\( x^8 + a_7 x^7 + a_6 x^6 + a_5 x^5 + a_4 x^4 + a_3 x^3 + a_2 x^2 + a_1 x + 420 \\) are positive integers. What is the maximum number of distinct roots of such a polynomial?" ]
[ "aops_c5_contests_amp_programs" ]
[ "cot", "tir" ]
{ "cot": 18, "tir": 2 }
20
0
0
omr-ws-c164341a595f96c6f723e91251091a7618da8b0a52f5c1a63586a7f0ac3774b1
Assume that arrivals of small aircraft at airports can be modeled by a Poisson process with an average of 1 arrival per hour. What is the probability that one has to wait at least three hours for the arrival of three aircraft?
[ "0.423" ]
[ "Assume that arrivals of small aircraft at airports can be modeled by a Poisson process with an average of 1 arrival per hour. What is the probability that one has to wait at least three hours for the arrival of three aircraft?" ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 15 }
15
0
0
omr-ws-e26b84d91457e78d2c2c2dcd881bed1723f81d9f230de3a3ffd7eff0979f294e
Assume that as a cubical bar of soap is used, all edges shrink at a constant rate of $n$ units per day. Starting with a full bar, the soap was used for 6 days and its surface area was cut in half. Starting with a full bar of soap, find exactly the time it could take for the volume to become one-eighth of the original v...
[ "\\(\\sqrt{2} + 2\\)" ]
[ "Assume that as a cubical bar of soap is used, all edges shrink at a constant rate of $n$ units per day. Starting with a full bar, the soap was used for 6 days and its surface area was cut in half. Starting with a full bar of soap, find exactly the time it could take for the volume to become one-eighth of the origi...
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-519e38b020b48453e46a7f2d3354b5c1f8aa4fc54ce85ab9e8f1f1b7447a205c
Assume that both the attacking player and the defending player have exactly \( m = 6 \) pieces on each of their territories. Calculate which player has the greater chance of "winning" the entire battle between the territories, if the attacking player is reduced to 1 piece, then he loses; if the defending player is redu...
[ "\\text{defending player}" ]
[ "Assume that both the attacking player and the defending player have exactly \\( m = 6 \\) pieces on each of their territories. Calculate which player has the greater chance of \"winning\" the entire battle between the territories, if the attacking player is reduced to 1 piece, then he loses; if the defending playe...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 13, "genselect": 8 }
21
0
0