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omr-ws-a29e07079a6b31f77ba8102dae6f79e8409f35e00b9708e7481d0ba978d6bf50
What are the nth Pythagorean triplets? Consider using odd numbers to find a pattern.
[ "\\( (2n - 1, 2n^2 - 2n, 2n^2 - 2n + 1) \\)" ]
[ "What are the nth Pythagorean triplets? Consider using odd numbers to find a pattern." ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-0d8da55e10924e19108cd2cfaf22140894993e7cd1893def1167dea12100c1b4
What are the numbers \(\left\langle\begin{matrix}n\\ m\end{matrix}\right\rangle\) typically called?
[ "Eulerian numbers" ]
[ "What are the numbers \\(\\left\\langle\\begin{matrix}n\\\\ m\\end{matrix}\\right\\rangle\\) typically called?" ]
[ "c7_college_math" ]
[ "tir" ]
{ "tir": 1 }
1
0
0
omr-ws-29fa21aa0b3f568a96048f9784e2bbcecc6b859636b89b8cea878fcf3c8dd6c5
What are the odds of drawing a red A card in the opening 7 cards?
[ "56:165" ]
[ "What are the odds of drawing a red A card in the opening 7 cards?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-fb60edd1521661f89e97736979fd153eb33f53e0e67b7a70ca3f9577f217a027
What are the odds of drawing a red card in the opening 7 cards?
[ "11131:55" ]
[ "What are the odds of drawing a red card in the opening 7 cards?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 14, "genselect": 5 }
19
0
0
omr-ws-3942fba3431bfc4a2fc0959a41736f08841fd35c6e0a01abce086a365dc034dc
What are the odds of guessing a 7-digit code where numbers can be repeated?
[ "\\(\\frac{1}{10^7}\\) or \\(1/10000000\\)" ]
[ "What are the odds of guessing a 7-digit code where numbers can be repeated?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 3, "genselect": 3, "tir": 9 }
15
0
0
omr-ws-0802d28e400e613646c43cc1c730a12c650ba64b97a53372791ae9f9825f2f55
What are the odds that if a coin with a 60% chance of landing heads is flipped endlessly, at some point during the flipping there will be a total of three more tails than heads?
[ "\\(\\frac{8}{27}\\)" ]
[ "What are the odds that if a coin with a 60% chance of landing heads is flipped endlessly, at some point during the flipping there will be a total of three more tails than heads?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 22 }
38
0
0
omr-ws-67e178ea789a90aa198ab966aba3bcf220c3c04bdc036135c326fe1704e8d15b
What are the only 3 positive integers that cannot be the length of the shortest side of a right triangle whose sides all have integral lengths?
[ "1, 2, 4", "1, 2, and 4." ]
[ "What are the only 3 positive integers that cannot be the length of the shortest side of a right triangle whose sides all have integral lengths?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "tir" ]
{ "tir": 14 }
14
0
0
omr-ws-6f3f063e692cb17207ef67d691547688a1b7904e9a8d010e3524baed44a79847
What are the only three positive integers that cannot be the shortest side of a right triangle?
[ "1, 2, 4" ]
[ "What are the only three positive integers that cannot be the shortest side of a right triangle?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "tir" ]
{ "tir": 11 }
11
0
0
omr-ws-de10d65560e3ee09b727934d3e46ddc0f81b5cfc564a54d0d5e1f673b857a3d4
What are the perimeters of the two plots, given that each plot has an area of $400$ m$^2$ and the total length of the wall in front of the two plots is $36$ m?
[ "80 m and 82 m" ]
[ "What are the perimeters of the two plots, given that each plot has an area of $400$ m$^2$ and the total length of the wall in front of the two plots is $36$ m?" ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 17 }
17
0
0
omr-ws-8b54f2c9841dd8352e2fdca12f8b2031738151280134e80d33af945ab221fc6d
What are the planar polygons whose area and perimeter are equal?
[ "Any polygon with an incircle radius of 2." ]
[ "What are the planar polygons whose area and perimeter are equal?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 16, "genselect": 7, "tir": 2 }
25
0
0
omr-ws-914e492de9c0ab2966d0566fb284b09ec351e41cb3f64422d07cf5800117fd07
What are the polynomials \( f \in K[X] \) such that if \( f(A) \) and \( f(B) \) commute, then \( A \) and \( B \) also commute?
[ "f(X) = aX + b" ]
[ "What are the polynomials \\( f \\in K[X] \\) such that if \\( f(A) \\) and \\( f(B) \\) commute, then \\( A \\) and \\( B \\) also commute?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 8, "genselect": 5 }
13
0
0
omr-ws-c93845504ebc6834dd408882fedb8ebe77e38131ffe6e4802f3a57b7d1637f1e
What are the positive integer numbers that can be obtained in exactly 2007 distinct ways as the sum of two or more consecutive positive integers? What is the smallest of all such numbers? Example: The number 9 can be written in exactly two such distinct ways: $9 = 4 + 5$ $9 = 2 + 3 + 4.$
[ "3^{250} \\times 5 \\times 7 \\times 11" ]
[ "What are the positive integer numbers that can be obtained in exactly 2007 distinct ways as the sum of two or more consecutive positive integers? What is the smallest of all such numbers?\n\nExample: The number 9 can be written in exactly two such distinct ways:\n$9 = 4 + 5$\n$9 = 2 + 3 + 4.$" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 6, "genselect": 8 }
14
0
0
omr-ws-c6e93ec30b0a54d3ee62a5d37fd25f4a6c061fef2e7a1cc7b3cf01268b4c98bd
What are the positive integer values of \( n \) that make \( 2^n - 1 \) divisible by 7?
[ "\\( n = 3k \\) for \\( k \\in \\mathbb{Z}_{\\geq 0} \\)" ]
[ "What are the positive integer values of \\( n \\) that make \\( 2^n - 1 \\) divisible by 7?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 24 }
39
0
0
omr-ws-e0f42ae7cea990a6584138b4837d0853d5f3c55653de11bd94fec0fbb8c20836
What are the possible Galois groups over $\mathbb{Q}$ of an irreducible quartic polynomial $f(x)$ whose discriminant is negative?
[ "D_4" ]
[ "What are the possible Galois groups over $\\mathbb{Q}$ of an irreducible quartic polynomial $f(x)$ whose discriminant is negative?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 10 }
10
0
0
omr-ws-bab414ae19f001e13b0c08104b2f5ec3c2cd07c3a042d0934cbba22851c6b8dc
What are the possible distances between a point $P$ and the origin, if $P$ is $5$ units away from the point $(0, 3)$ on the $y$-axis?
[ "\\([2, 8]\\)" ]
[ "What are the possible distances between a point $P$ and the origin, if $P$ is $5$ units away from the point $(0, 3)$ on the $y$-axis?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 19 }
35
0
0
omr-ws-18004d76b813e49764aae548a32daad3357760a682264c3243260e4bab8402e5
What are the possible greatest common divisors (GCDs) of the expressions $y^2 + 2 - 2y$ and $y^2 + 2 + 2y$?
[ "1, 2" ]
[ "What are the possible greatest common divisors (GCDs) of the expressions $y^2 + 2 - 2y$ and $y^2 + 2 + 2y$?" ]
[ "aops_c6_high_school_olympiads", "c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 2, "genselect": 4, "tir": 21 }
27
0
0
omr-ws-8f8ab0f598a0c7d3908776ad0701e75eb07658870cc6ddff4fda03af7097f342
What are the possible lengths of horizontal line segments that start and finish on the graph of $x^3 - x$?
[ "\\( (0, 2] \\)" ]
[ "What are the possible lengths of horizontal line segments that start and finish on the graph of $x^3 - x$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 35, "genselect": 8, "tir": 5 }
48
0
0
omr-ws-66098642098713353c997153f2b4e35c92a0a8a6116ba6f20e4a1daa60d35f55
What are the possible lengths of horizontal line segments that start and finish on the graph of \( y = x^3 - x \)?
[ "\\(0\\) to \\(2\\)" ]
[ "What are the possible lengths of horizontal line segments that start and finish on the graph of \\( y = x^3 - x \\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 36, "genselect": 8, "tir": 4 }
48
0
0
omr-ws-65e7329a3486a451e2063da0aaa7ff5b0f9aef42ecf144bc6c60ed03e08c2cdb
What are the possible multiples that can arise when a natural number is an integral multiple of its reverse, as in the example 8712 = 4 x 2178?
[ "9" ]
[ "What are the possible multiples that can arise when a natural number is an integral multiple of its reverse, as in the example 8712 = 4 x 2178?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 14 }
14
0
0
omr-ws-a286ccdae68d3d3d995b80ec58fa191843b797399827bbd9df2275dc6d14f2c5
What are the possible numbers of common external tangents that two congruent nonconcentric circles in the same plane can have?
[ "2, 3, 4" ]
[ "What are the possible numbers of common external tangents that two congruent nonconcentric circles in the same plane can have?" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-a9577ce74aa09e0aff8ec987a0566521d13bdd66c6a66f8a786ee03c77ec7510
What are the possible numbers of elements of order 406 in a group \( G \) having a different number of elements of order 2?
[ "0" ]
[ "What are the possible numbers of elements of order 406 in a group \\( G \\) having a different number of elements of order 2?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 6, "genselect": 6 }
12
0
0
omr-ws-d9afc92eabb68d497bcff230da5eb8afd0b7e58967ced5559668ca85aeca1eb9
What are the possible orders of elements of the group $G$, where $G$ is the set of all invertible $4 \times 4$ matrices over the integers mod 2?
[ "\\( 1, 2, 3, 4, 5, 6, 7, 15 \\)" ]
[ "What are the possible orders of elements of the group $G$, where $G$ is the set of all invertible $4 \\times 4$ matrices over the integers mod 2?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 2, "tir": 2 }
4
0
0
omr-ws-879c93923117bf248c7348568699300f2597cb681922d31e69744941c7387b55
What are the possible positions of the midpoints $U$ of $BA$ and $V$ of $AC$ as $\angle OPA$ varies, given two concentric circles with radii $R$ and $r$ ($R > r$), a fixed point $P$ on the smaller circle, and points $B$ and $C$ on the larger circle such that $B, P, C$ are collinear and $BC$ is perpendicular to $AP$?
[ "\\frac{R}{2}" ]
[ "What are the possible positions of the midpoints $U$ of $BA$ and $V$ of $AC$ as $\\angle OPA$ varies, given two concentric circles with radii $R$ and $r$ ($R > r$), a fixed point $P$ on the smaller circle, and points $B$ and $C$ on the larger circle such that $B, P, C$ are collinear and $BC$ is perpendicular to $A...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-6061de0a77019c3886d581e124522312cc3ca32c68c08553d506290c6ae10236
What are the possible remainders of \( x^4 \) modulo 25, where \( x \) is a natural number less than 25? Can this result be extended to any number \( x \) and any number other than 25?
[ "21" ]
[ "What are the possible remainders of \\( x^4 \\) modulo 25, where \\( x \\) is a natural number less than 25? Can this result be extended to any number \\( x \\) and any number other than 25?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-495095aabf6997a78ae59cb856129b00d70bbdf83f60d9713f0d4e93fa306cc1
What are the possible remainders when each of the primes \(a_1, a_2, \ldots, a_p\) is divided by \(p\)?
[ "\\(1, 2, \\ldots, p-1\\)" ]
[ "What are the possible remainders when each of the primes \\(a_1, a_2, \\ldots, a_p\\) is divided by \\(p\\)?" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-aa7329266bc8d94ac879e1865fe37fe6a8bc08ab3d38a8d26a876f10e5884951
What are the possible values for $\det(A)$ if $A$ is an idempotent matrix, i.e., $A^2 = A$?
[ "0 or 1" ]
[ "What are the possible values for $\\det(A)$ if $A$ is an idempotent matrix, i.e., $A^2 = A$?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 11, "tir": 29 }
40
0
0
omr-ws-9fe9da2ac0fcda7642d45a293336f115d7ecd6becdba93b5d6cfbf0de8ada6c1
What are the possible values for the minimum degree among the irreducible factors of a polynomial of degree 5?
[ "1" ]
[ "What are the possible values for the minimum degree among the irreducible factors of a polynomial of degree 5?" ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-d0b82429a5b892e606f9a169750a6bda4628f321a4be338e3b47646ab6f3a8ba
What are the possible values of $\alpha$ such that the equation \[ \big[x\big]^{\big[x + \alpha\big]} = \big[x + \alpha\big]^{\big[x\big]} \] has real solutions? (Where $\big[.\big]$ is the greatest integer function)
[ "\\(\\alpha \\in (-3, -1) \\cup (-1, 1) \\cup (1, 3)\\)" ]
[ "What are the possible values of $\\alpha$ such that the equation \n\\[\n\\big[x\\big]^{\\big[x + \\alpha\\big]} = \\big[x + \\alpha\\big]^{\\big[x\\big]}\n\\]\nhas real solutions? (Where $\\big[.\\big]$ is the greatest integer function)" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 23, "genselect": 7, "tir": 8 }
38
0
0
omr-ws-cda71fa6e1d7d9105920fe99cc968c2b5719a1a858c5d05eb8c2711f589f91fe
What are the possible values of $\gcd(a_n, a_{n+1})$ for the sequence $a_n = n^3 + 2$ as $n$ varies?
[ "\\{1, 109\\}" ]
[ "What are the possible values of $\\gcd(a_n, a_{n+1})$ for the sequence $a_n = n^3 + 2$ as $n$ varies?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 2, "genselect": 8, "tir": 21 }
31
0
0
omr-ws-40f8269d567aea7269ff8931e8cac632f2bc92a7eca8219994c7ad0f804f6c24
What are the possible values of the expression \(\sum_{1 \leq i < j \leq n} \frac{1}{n-1 + x_i x_j}\) when \(n\) is fixed and \(x_1, \ldots, x_n > 0\) have the sum of their inverses equal to 1?
[ "\\dfrac{n(n-1)}{2(n^2 + n - 1)}" ]
[ "What are the possible values of the expression \\(\\sum_{1 \\leq i < j \\leq n} \\frac{1}{n-1 + x_i x_j}\\) when \\(n\\) is fixed and \\(x_1, \\ldots, x_n > 0\\) have the sum of their inverses equal to 1?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 7 }
7
0
0
omr-ws-3e01b473b00d6fc54af890c1608a350e700b22e0dc35022cc1b54ee882654f68
What are the possible values of the expression \[ \frac{x_1}{x_2 + 2(n-1)x_1 + x_3} + \frac{x_2}{x_3 + 2(n-1)x_2 + x_4} + \cdots + \frac{x_n}{x_1 + 2(n-1)x_n + x_2} \] when \( x_1, x_2, \ldots, x_n > 0 \)?
[ "\\(\\left(\\frac{1}{2(n-1)}, \\frac{1}{2}\\right]\\)" ]
[ "What are the possible values of the expression\n\\[\n\\frac{x_1}{x_2 + 2(n-1)x_1 + x_3} + \\frac{x_2}{x_3 + 2(n-1)x_2 + x_4} + \\cdots + \\frac{x_n}{x_1 + 2(n-1)x_n + x_2}\n\\]\nwhen \\( x_1, x_2, \\ldots, x_n > 0 \\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "tir" ]
{ "tir": 1 }
1
0
0
omr-ws-c32b0a51a070ac3acdec80e84ba1f7dab21fa745da2f132797fe92b3c5d39c87
What are the prime ideals in $\mathbb{Z}[x]$?
[ "The prime ideals in \\(\\mathbb{Z}[x]\\) are \\((0)\\), \\(p\\mathbb{Z}[X]\\) for a prime \\(p\\), \\((p, F)\\) for a prime \\(p\\) and an irreducible polynomial \\(F\\) in \\(\\mathbb{Z}_p[X]\\), and \\((F)\\) for an irreducible polynomial \\(F\\) of positive degree with content 1." ]
[ "What are the prime ideals in $\\mathbb{Z}[x]$?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 6, "tir": 16 }
22
0
0
omr-ws-d73f7760344b5b0127da6aa77c2015e049225a2d4de44d4cd602005b63251a48
What are the prime ideals of the ring $ R$ of continuous real-valued functions on $ [0,1]$?
[ "M_x \\text{ for each } x \\in [0,1]" ]
[ "What are the prime ideals of the ring $ R$ of continuous real-valued functions on $ [0,1]$?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 12, "genselect": 7 }
19
0
0
omr-ws-9d1e92dee1e2f4498fb8420535ce19d3a87c0a78a1d1ac1ff311ed4b7cbcb92e
What are the prime ideals of the ring $A_1 \times A_2$, where $A_1$ and $A_2$ are rings?
[ "\\( P_1 \\times A_2 \\) or \\( A_1 \\times P_2 \\) where \\( P_1 \\) is a prime ideal of \\( A_1 \\) and \\( P_2 \\) is a prime ideal of \\( A_2 \\)." ]
[ "What are the prime ideals of the ring $A_1 \\times A_2$, where $A_1$ and $A_2$ are rings?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 14, "tir": 5 }
19
0
0
omr-ws-056c327424d9ec3c90495fc646dc1e016cfbbcff106697f071eba3d4b526b5fe
What are the prime numbers \( p > 0 \) for which the decimal expansion of \( \frac{1}{p} \) is purely periodic with a period of 5 digits?
[ "41 and 271" ]
[ "What are the prime numbers \\( p > 0 \\) for which the decimal expansion of \\( \\frac{1}{p} \\) is purely periodic with a period of 5 digits?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 1, "tir": 23 }
24
0
0
omr-ws-9814cbcb8e716c9e7b53111be2f6219dc589522298f12a11a47eb9466a0f2e52
What are the primes in $\mathbb{Z}[\sqrt{-2}]$?
[ "\\sqrt{-2}" ]
[ "What are the primes in $\\mathbb{Z}[\\sqrt{-2}]$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 6 }
6
0
0
omr-ws-dc37d5a444a9f2df3572842ca4b53f89b9d2ea35f13b696d18bf34d6aad68251
What are the primes of the form $x^2 + 2y^2$?
[ "p = 2 \\text{ or } p \\equiv 1, 3 \\pmod{8}" ]
[ "What are the primes of the form $x^2 + 2y^2$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 10 }
10
0
0
omr-ws-aace5ccc4c6af72af214fe40bee9f2e8049c808e131eeba3e805120e70aff2f6
What are the proceeds of a $9,500 note at a 12% discount rate for 8 months? Round your answer to the nearest cent.
[ "8740.00" ]
[ "What are the proceeds of a $9,500 note at a 12% discount rate for 8 months? Round your answer to the nearest cent." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-6634813b4052be2c916740e7653ed6d8d845b9fd37d727978074d03cb3130277
What are the properties of a convex hexagon such that each diagonal cuts off a triangle whose area is not less than $\frac{1}{6}$ of the area of the hexagon?
[ "\\text{The hexagon is regular.}" ]
[ "What are the properties of a convex hexagon such that each diagonal cuts off a triangle whose area is not less than $\\frac{1}{6}$ of the area of the hexagon?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-3c9ed154e2fad00147bcb513e15e35fd9ed9969f3f3f8a011727dd02a5b9bd11
What are the properties of quadrilateral \(ABCD\) when \(AB^2 \cdot CD^2 + BC^2 \cdot AD^2 = AC^2 \cdot BD^2\)?
[ "Two opposite angles add up to \\(90^\\circ\\) and the other two opposite angles add up to \\(270^\\circ\\)." ]
[ "What are the properties of quadrilateral \\(ABCD\\) when \\(AB^2 \\cdot CD^2 + BC^2 \\cdot AD^2 = AC^2 \\cdot BD^2\\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-020d9503b7b55480975ec4cd4be14371a05a63441d6f14da1e84b50452daae47
What are the real factors of \( x^2 + 4 \)?
[ "Non-existent." ]
[ "What are the real factors of \\( x^2 + 4 \\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 12, "genselect": 5, "tir": 21 }
38
0
0
omr-ws-60b5927629c633369dad255afe05dac83d547babfee2ecb5f36c6e6689c9c95c
What are the real matrices \( A \) of size \( n \) such that \( A^T A A = I_n \)?
[ "I_n" ]
[ "What are the real matrices \\( A \\) of size \\( n \\) such that \\( A^T A A = I_n \\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-501a099a650f4d2388383ad38a2e0b24dc8b274599439197a28c1dfadf3f5b24
What are the real solutions to the equation \(2^x = x^2\)?
[ "\\(2, 4, -2\\frac{{\\text{LambertW} \\left( \\frac{\\ln \\left( 2 \\right)}{2} \\right)}}{\\ln \\left( 2 \\right)}\\) \n\nNote: The third solution is expressed using the Lambert W-function, which is not an elementary function." ]
[ "What are the real solutions to the equation \\(2^x = x^2\\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 2, "tir": 16 }
18
0
0
omr-ws-c0d89f0db793ed822098d3a8236586803a62d163a98e6dfb9534eaf193b132ce
What are the representations of $e$ and $\pi$ in the most well-known and simple continued fractions, integrals, and infinite sums?
[ "\\pi" ]
[ "What are the representations of $e$ and $\\pi$ in the most well-known and simple continued fractions, integrals, and infinite sums?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 4 }
4
0
0
omr-ws-883d3925be3ab9b8f394d35fbb9551528c04cd2c8f52856069d38c40574f19fd
What are the restrictions on the functions \( f(x) \) and \( g(x) \) for the equation \[ \int_a^b \bigg(f(x) + g(x)\bigg) \, dx = \int_a^b f(x) \, dx + \int_a^b g(x) \, dx \] to hold true?
[ "f \\text{ and } g \\text{ must be integrable on } [a, b]" ]
[ "What are the restrictions on the functions \\( f(x) \\) and \\( g(x) \\) for the equation\n\\[ \\int_a^b \\bigg(f(x) + g(x)\\bigg) \\, dx = \\int_a^b f(x) \\, dx + \\int_a^b g(x) \\, dx \\]\nto hold true?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-810ee75311adba3184de695bdd832ad7c8c57185e6a843be0c87061288d90ad7
What are the rightmost three digits of $5^{1993}$?
[ "125" ]
[ "What are the rightmost three digits of $5^{1993}$?" ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-0877d2d679c6affd88a196e339ae36544650eaa15e2e55cfd1ee2b8dcd684dc8
What are the rightmost three digits of the positive integer $2016^{{2015}^{2014}}$?
[ "376" ]
[ "What are the rightmost three digits of the positive integer $2016^{{2015}^{2014}}$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 11 }
27
0
0
omr-ws-55a418f4e7c945dd4f1d69f532cb053cde67b2e2b60881e290409991ef4bb58d
What are the roots of the equation $ \cos\frac{\pi}{1+\sqrt{x}}+\cos{\frac{{\pi }}{1+2x}}=0$ on the segment $[-2013, 2013]$?
[ "\\( \\frac{1}{\\sqrt[3]{4}} \\)" ]
[ "What are the roots of the equation $ \\cos\\frac{\\pi}{1+\\sqrt{x}}+\\cos{\\frac{{\\pi }}{1+2x}}=0$ on the segment $[-2013, 2013]$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 15 }
30
0
0
omr-ws-ab6eefe64c5297e06b1a97755bd08f92cdae95afa7f1706e74fec32001f703cb
What are the roots of the equation $3x^7 - 3x^6 + 1 = 0$?
[ "-0.758" ]
[ "What are the roots of the equation $3x^7 - 3x^6 + 1 = 0$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 10, "genselect": 6 }
16
0
0
omr-ws-b03881435819d246d7e40c951ffc8853d56d4c884ca02afd48c4d796a3c06e02
What are the roots of the equation $x^4 - 4x - 1 = 0$?
[ "\\frac{-\\sqrt{2} \\pm i\\sqrt{4\\sqrt{2} + 2}}{2}" ]
[ "What are the roots of the equation $x^4 - 4x - 1 = 0$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 9 }
9
0
0
omr-ws-8ff9f60d0f83123d2741f55260ad415fc786937c1bd786f6027ba3aa5cf5d620
What are the roots of the equation \( x(x^2 + 8x + 16)(4 - x) = 0 \)?
[ "0, 4, -4, -4" ]
[ "What are the roots of the equation \\( x(x^2 + 8x + 16)(4 - x) = 0 \\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 11, "genselect": 3, "tir": 20 }
34
0
0
omr-ws-abbfb438bd01c050149cbd49baba7bfc7b45e7a0173a5876c548faea94b8d449
What are the roots of the equation \( x^9 = -1 \)?
[ "\\(\\cos\\left(\\frac{\\pi}{9}+\\frac{2k\\pi}{9}\\right) + i \\cdot \\sin\\left(\\frac{\\pi}{9}+\\frac{2k\\pi}{9}\\right) \\quad \\text{for} \\quad k=1,2,3,4,5,6,7,8.\\)" ]
[ "What are the roots of the equation \\( x^9 = -1 \\)?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "tir" ]
{ "tir": 8 }
8
0
0
omr-ws-664c1c8333182d71ec9f408a04e4409015b5f098ee63e44abafe9602413eb89e
What are the roots of the equation \(x^3 - 3x^2 + 1 = 0\)?
[ "\\( -\\frac{1}{2} \\sec 20^\\circ, \\frac{1}{2} \\sec 40^\\circ, \\frac{1}{2} \\sec 80^\\circ \\)" ]
[ "What are the roots of the equation \\(x^3 - 3x^2 + 1 = 0\\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "tir" ]
{ "tir": 1 }
1
0
0
omr-ws-8c24664b5639f64c767a389a20f694a0cbedd4f1398d94cae3c9e1b2cd7c0925
What are the roots of the equation \(x^n + x^{n-1} + x^{n-2} + \cdots + x + 1 = 0\)?
[ "\\( e^{2k\\pi i / (n+1)} \\ \\ \\text{for} \\ \\ k=1,2,\\ldots, n \\)" ]
[ "What are the roots of the equation \\(x^n + x^{n-1} + x^{n-2} + \\cdots + x + 1 = 0\\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 26 }
42
0
0
omr-ws-6f016ad74c5f0e82c11b707904fd99a2e14cb3e4424ce2e4359c8334f65b8cd8
What are the roots of the equation \(x^{11} + x^{10} + \cdots + x + 1 = 0\)?
[ "\\(\\frac{\\sqrt{3}}{2} + \\frac{i}{2}, \\frac{1}{2} + \\frac{i\\sqrt{3}}{2}, i, -\\frac{1}{2} + \\frac{i\\sqrt{3}}{2}, -\\frac{\\sqrt{3}}{2} + \\frac{i}{2}, -1, -\\frac{\\sqrt{3}}{2} - \\frac{i}{2}, -\\frac{1}{2} - \\frac{i\\sqrt{3}}{2}, -i, \\frac{1}{2} - \\frac{i\\sqrt{3}}{2}, \\frac{\\sqrt{3}}{2} - \\frac{i}{2...
[ "What are the roots of the equation \\(x^{11} + x^{10} + \\cdots + x + 1 = 0\\)?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 13, "genselect": 5, "tir": 27 }
45
0
0
omr-ws-edb649f0dc1b45c856db325d11c9b2734092df5dadb2538aa2ec1ba44e8025d5
What are the roots of the irreducible polynomial $f(x) = x^4 + x + 1$ over $\mathbb{F}_2$?
[ "\\(\\rho, \\rho^2, \\rho + 1, \\rho^2 + 1\\)" ]
[ "What are the roots of the irreducible polynomial $f(x) = x^4 + x + 1$ over $\\mathbb{F}_2$?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 3, "genselect": 1, "tir": 17 }
21
0
0
omr-ws-6f68f2fcbed5c6327cc5a4d5225c28e692a1326e91efaa3c5dd0e1ad56bd8ac0
What are the roots of the polynomial \(x^3 + x + 1\)?
[ "\\(\\frac{2}{t} - \\frac{t}{6}, \\quad \\frac{t}{12} - \\frac{1}{t} \\pm \\frac{\\sqrt{3}}{2} \\left( \\frac{t}{6} + \\frac{2}{t} \\right)i\\) with \\( t = \\sqrt[3]{108 + 12\\sqrt{93}} \\)" ]
[ "What are the roots of the polynomial \\(x^3 + x + 1\\)?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 5, "genselect": 4, "tir": 1 }
10
0
0
omr-ws-1d2fd3c83ac11c20278c95bb23ed2f05d6e2bc988443a4c6219ad1b517ffce3c
What are the roots of the polynomial equation $(x)_n + (x+n+1)_n = 0$, where $(z)_k = z(z+1)\cdots(z+k-1)$ and $k, n \in \{1, 2, \ldots\}$?
[ "-n" ]
[ "What are the roots of the polynomial equation $(x)_n + (x+n+1)_n = 0$, where $(z)_k = z(z+1)\\cdots(z+k-1)$ and $k, n \\in \\{1, 2, \\ldots\\}$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-2fb71e130baad66b5d9b16279377f979c9940ae25b2e138480c5c6090c766c19
What are the roots of the quadratic equation \(x^2 + 5 = 0\)? How do imaginary numbers function in this context?
[ "\\( \\sqrt{5}i \\) and \\( -\\sqrt{5}i \\)" ]
[ "What are the roots of the quadratic equation \\(x^2 + 5 = 0\\)? How do imaginary numbers function in this context?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 22 }
38
0
0
omr-ws-180c5cce49a8e8af8aa4a08915701c928d2e263d04607a7598984ee3e2efb53e
What are the semi-axes of the ellipsoid that contains two unit spheres in its interior and has the minimum surface area?
[ "\\dfrac{2}{\\sqrt{3}}" ]
[ "What are the semi-axes of the ellipsoid that contains two unit spheres in its interior and has the minimum surface area?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 7 }
7
0
0
omr-ws-97e7950a9ca1030f992f4f9abfca4cb60d2109a30944b8d2646f7cea62bc56c1
What are the semi-axes of the ellipsoid that contains two unit spheres in its interior and has the minimum volume?
[ "\\dfrac{2}{\\sqrt{3}}" ]
[ "What are the semi-axes of the ellipsoid that contains two unit spheres in its interior and has the minimum volume?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 8 }
8
0
0
omr-ws-c288e62f0817a7804cdbfadfa3be3dca7463e331276b43b5fc3c6a90710b986c
What are the semimajor and semiminor axes of the ellipse that contains two unit circles in its interior and has the minimum arclength?
[ "\\dfrac{2\\sqrt{3}}{3}" ]
[ "What are the semimajor and semiminor axes of the ellipse that contains two unit circles in its interior and has the minimum arclength?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 6 }
6
0
0
omr-ws-edd65cd5bf681542e9dbadcd04a4f74291dad3dcfb3bfa885adf37176cc32642
What are the semimajor and semiminor axes of the ellipse that contains two unit circles in its interior and has the minimum area?
[ "\\( a = \\frac{3\\sqrt{2}}{2} \\), \\( b = \\frac{\\sqrt{6}}{2} \\)" ]
[ "What are the semimajor and semiminor axes of the ellipse that contains two unit circles in its interior and has the minimum area?" ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 4 }
4
0
0
omr-ws-57598794e47390baaf0345e4fb4a05ebb287527562c510f3df5d47fbd9539b52
What are the seven cyclic subgroups of $D_4$?
[ "\\( <1>, <\\rho^2>, <\\sigma>, <\\sigma \\rho>, <\\sigma \\rho^2>, <\\sigma \\rho^3>, <\\rho> \\)" ]
[ "What are the seven cyclic subgroups of $D_4$?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 5, "tir": 20 }
25
0
0
omr-ws-05fc356e29ac114966228b7e560843a190ef52cc0814253a123bd1cb1cd6e1b6
What are the side length ratios for a 15-75-90 right triangle?
[ "\\(1: \\sqrt{3}+2: \\sqrt{2}+\\sqrt{6}\\)" ]
[ "What are the side length ratios for a 15-75-90 right triangle?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 4 }
20
0
0
omr-ws-99c3c8b9f3f0c59caa382cf4523f713b569ba23068019eac0e776ee9854229f6
What are the side length relations of a triangle such that the median AD is divided into three equal parts by the incircle?
[ "\\( b = 0.5a, c = 1.3a \\)" ]
[ "What are the side length relations of a triangle such that the median AD is divided into three equal parts by the incircle?" ]
[ "aops_c6_high_school_olympiads" ]
[ "tir" ]
{ "tir": 3 }
3
0
0
omr-ws-96ca19590931ba85b5a32fb8dcb7722cc6f8b5203ccccdd83a0d25b2ea1ad67d
What are the sign and units digit of the product of all the odd negative integers strictly greater than $-2015$?
[ "It is a negative number ending with a 5." ]
[ "What are the sign and units digit of the product of all the odd negative integers strictly greater than $-2015$?" ]
[ "aops_c5_contests_amp_programs" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 3, "tir": 19 }
36
0
0
omr-ws-d646123621ac8424a1d4a02aba061d2764778659a681976e781876dd8b9a73c2
What are the slopes of the tangents from the origin to the circle $(x-3)^2+(y-4)^2=4$?
[ "\\(\\frac{12 + 2\\sqrt{21}}{5}\\) and \\(\\frac{12 - 2\\sqrt{21}}{5}\\)" ]
[ "What are the slopes of the tangents from the origin to the circle $(x-3)^2+(y-4)^2=4$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 6, "tir": 24 }
30
0
0
omr-ws-eaf64903f7e9c83acbf5942f4f514cce3e8508a709bf0735242a18f8ce0cc4b8
What are the smallest possible values of \(a\), \(b\), and \(c\) so that the number 1997abc is divisible by 2, 3, 5, and 11?
[ "\\(a = 1\\), \\(b = 6\\), \\(c = 0\\)" ]
[ "What are the smallest possible values of \\(a\\), \\(b\\), and \\(c\\) so that the number 1997abc is divisible by 2, 3, 5, and 11?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 24 }
39
0
0
omr-ws-7a527566ca2a21b5af6c50f4f2106a0052499c987e4d95278b048c0d50e9599c
What are the solutions of a multiplicative function $f \colon \mathbb{N} \to \mathbb{N}$ such that $f(mn) = f(m)f(n)$?
[ "\\( f(n) = \\prod_{k=1}^s f(p_k)^{e_k} \\) where \\( n = \\prod_{k=1}^s p_k^{e_k} \\) and \\( f \\) can be defined arbitrarily on the primes." ]
[ "What are the solutions of a multiplicative function $f \\colon \\mathbb{N} \\to \\mathbb{N}$ such that $f(mn) = f(m)f(n)$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 28, "genselect": 8, "tir": 16 }
52
0
0
omr-ws-f5b1079b12bdb8dce87161fd33350ab317eb0f922a6db90dacc58582e3ca7609
What are the solutions of the differential equation $f'(x) = f^{-1}(x)$?
[ "For \\( x > 0 \\):\n\\[ f(x) = \\left(\\frac{1 + \\sqrt{5}}{2}\\right)^{\\frac{1 - \\sqrt{5}}{2}} x^{\\frac{1 + \\sqrt{5}}{2}} \\]\n\nFor \\( x < 0 \\):\n\\[ f(x) = -\\left(\\frac{-1 + \\sqrt{5}}{2}\\right)^{\\frac{1 + \\sqrt{5}}{2}} (-x)^{\\frac{1 - \\sqrt{5}}{2}} \\]" ]
[ "What are the solutions of the differential equation $f'(x) = f^{-1}(x)$?" ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-bd1ddc1881f61cb5bdd31d73dc88592d60995410dfc1f4822b3b54635dfc09b0
What are the solutions of the equation $x^2 - 64 = 0$ in the complex numbers?
[ "\\( x = -8, 8 \\)" ]
[ "What are the solutions of the equation $x^2 - 64 = 0$ in the complex numbers?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 5, "tir": 27 }
32
0
0
omr-ws-8f9578d88f2ef937590ed69944c371e3167038f9132d7773116af5ee73c9a800
What are the solutions of the equation $x^3 + 2x^2t + 3xt^2 + 4t^3 = 0$?
[ "\\( t = -x \\left( \\sqrt[3]{\\frac{5}{64} + \\frac{5}{24 \\sqrt{6}}} + \\sqrt[3]{\\frac{5}{64} - \\frac{5}{24 \\sqrt{6}}} + \\frac{1}{4} \\right) \\)" ]
[ "What are the solutions of the equation $x^3 + 2x^2t + 3xt^2 + 4t^3 = 0$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-854b5e044737b21f23907cee4f9720bd11c99bf19d073051bbd09f6c51e52d0f
What are the solutions of the equation \( t^{r^k} = t \) for \( t \) in the finite field \( F_q \), where \( F_q \) is a finite field with \( q = r^f \) and \( k < f \)?
[ "\\( \\mathbb{F}_{r^{gcd(k,f)}} \\)" ]
[ "What are the solutions of the equation \\( t^{r^k} = t \\) for \\( t \\) in the finite field \\( F_q \\), where \\( F_q \\) is a finite field with \\( q = r^f \\) and \\( k < f \\)?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 13, "genselect": 8, "tir": 12 }
33
0
0
omr-ws-2903181f353bd501d097b8dd9cc69fe25e6805b5fcc4af751c55e0caf2dd8a66
What are the solutions to the equation $\sqrt{n} \leq \delta(n)$, where $\delta(n)$ is the number of divisors of $n$? Is the number of solutions finite?
[ "The solutions are finite and listed above." ]
[ "What are the solutions to the equation $\\sqrt{n} \\leq \\delta(n)$, where $\\delta(n)$ is the number of divisors of $n$? Is the number of solutions finite?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 13, "genselect": 4, "tir": 22 }
39
0
0
omr-ws-4bd3b75fd16b2daea8a78bd42fc30aee319cdac8afe809fd95e2e1ad0bbd2fc5
What are the solutions to the equation $x^x = 1$?
[ "1" ]
[ "What are the solutions to the equation $x^x = 1$?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-ffbc96815cf9185da6a97b7da63ec6a07232737e1850420c404d4743c72ba816
What are the solutions to the equation \( z^6 + 2z^3 + 2 = 0 \)?
[ "\\( z = \\frac{\\sqrt{2}}{2} e^{i\\frac{(2k\\pi - \\frac{3\\pi}{4})}{3}} \\) for \\( k = 1, 2, 3 \\) and \\( z = \\frac{\\sqrt{2}}{2} e^{i\\frac{(2k\\pi - \\frac{3\\pi}{4})}{3}} \\) for \\( k = 1, 2, 3 \\)" ]
[ "What are the solutions to the equation \\( z^6 + 2z^3 + 2 = 0 \\)?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 11, "tir": 30 }
41
0
0
omr-ws-7ed89734ed99effb23b9092f273aa6c72084110d766a567935050afa020b45a5
What are the subgroups of $Z_{2012}$ and what are their orders?
[ "Orders: 1, 2, 4, 503, 1006, 2012; Subgroups: \\{0\\}, \\{0, 1006\\}, \\{0, 503, 1006, 1509\\}, \\{0, 4, 8, ..., 2004, 2008\\}, \\{0, 2, 4, ..., 2008, 2010\\}, \\{0, 1, 2, ..., 2010, 2011\\}" ]
[ "What are the subgroups of $Z_{2012}$ and what are their orders?" ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 22 }
22
0
0
omr-ws-fe5d213c27b544bfdfaedb9344a90f89f7b143630e6e4ea6e8e5e6549eeaa9ad
What are the subgroups of \((\mathbb{Z}, +)\) and their related conjugate classes?
[ "\\text{All subgroups are } n\\mathbb{Z} \\text{ for } n \\in \\mathbb{N}_0 \\text{, each with conjugacy class } \\{n\\mathbb{Z}\\}" ]
[ "What are the subgroups of \\((\\mathbb{Z}, +)\\) and their related conjugate classes?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-d9df8363bbd703eff71025fba1bb415549b63c46c3b30606abbc827fd54747a9
What are the subgroups of the group $(\mathbb{Z}_3 \times \mathbb{Z}_3, \circ)$, where $\circ$ is the componentwise addition operation defined by $(a,b) \circ (c,d) = (a+c, b+d)$?
[ "\\(\\{(0,0)\\}, \\mathbb{Z}_3 \\times \\mathbb{Z}_3, \\{(0,0),(1,1),(2,2)\\}, \\{(0,0),(0,1),(0,2)\\}, \\{(0,0),(1,0),(2,0)\\}, \\{(0,0),(2,1),(1,2)\\}\\)" ]
[ "What are the subgroups of the group $(\\mathbb{Z}_3 \\times \\mathbb{Z}_3, \\circ)$, where $\\circ$ is the componentwise addition operation defined by $(a,b) \\circ (c,d) = (a+c, b+d)$?" ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 8, "tir": 27 }
35
0
0
omr-ws-7170e1bfe784a302512f72d2ff6453d24f89fc42aae10d1369404b569656de0f
What are the subrings of $\mathbb{Z} \times \mathbb{Z}$?
[ "m\\mathbb{Z} \\times n\\mathbb{Z} \\text{ and } \\{(a, b) \\mid a \\equiv b \\pmod{d}\\} \\text{ for some non-negative integers } m, n, d" ]
[ "What are the subrings of $\\mathbb{Z} \\times \\mathbb{Z}$?" ]
[ "aops_c7_college_math" ]
[ "additional_problems", "genselect" ]
{ "additional_problems": 1, "genselect": 6 }
7
0
0
omr-ws-ea289974a75e944f464195634b310d4dab030ab380d04b0905c66e70b92f728e
What are the subrings of the quaternions $\mathbb{H}$ that form an integral domain, excluding the obvious examples $\mathbb{C}$, $\mathbb{R}$, $\mathbb{Q}$, and $\mathbb{Z}$?
[ "\\mathbb{Z}[i]" ]
[ "What are the subrings of the quaternions $\\mathbb{H}$ that form an integral domain, excluding the obvious examples $\\mathbb{C}$, $\\mathbb{R}$, $\\mathbb{Q}$, and $\\mathbb{Z}$?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 2 }
2
0
0
omr-ws-1fe29963d47cc3c8d9c63e44b7ffb5852848286ebdd89ee49fb11c8b37b6c1b7
What are the subsets $A$ of the sphere $S^1$ such that there exists a continuous function $f: \mathbb{R}^2 \to \mathbb{R}^2$ with $A$ being the image of the unit closed ball under $f$ and $f$ being the identity on $A$?
[ "compact arcs of the circle." ]
[ "What are the subsets $A$ of the sphere $S^1$ such that there exists a continuous function $f: \\mathbb{R}^2 \\to \\mathbb{R}^2$ with $A$ being the image of the unit closed ball under $f$ and $f$ being the identity on $A$?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 10, "genselect": 7, "tir": 5 }
22
0
0
omr-ws-a2d537a8d66d25b429aff104023502067e89d081e138b7832f72cd4a77442ac8
What are the sufficient and necessary conditions for a sequence $\{a_i\}$ such that $\sum_{i=1}^{\infty} (-1)^i a_i$ is convergent?
[ "\\text{The series converges if and only if } \\lim_{i \\to \\infty} a_i = 0 \\text{ and } \\{a_i\\} \\text{ is eventually non-increasing.}" ]
[ "What are the sufficient and necessary conditions for a sequence $\\{a_i\\}$ such that $\\sum_{i=1}^{\\infty} (-1)^i a_i$ is convergent?" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-08d33256f8b56a4b646a381e4cb99666882a20168dfd15da6980d5eaf8c04a3a
What are the sufficient and/or necessary conditions on the coefficients for a monic polynomial to take only positive values on \( \mathbb{R}^+ \) or \( \mathbb{R}^* \)?
[ "\\text{All coefficients are non-negative}" ]
[ "What are the sufficient and/or necessary conditions on the coefficients for a monic polynomial to take only positive values on \\( \\mathbb{R}^+ \\) or \\( \\mathbb{R}^* \\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 4 }
8
0
0
omr-ws-a62a2205eba70b9d9337ef2edd1fa9920fe3e7c8a8ca574bcabfdf84d563eed1
What are the sufficient or necessary conditions on the coefficients of a real polynomial of degree \(2n\) such that \(p(x) \ge 0\) for all real numbers \(x\)?
[ "p(x) \\text{ is a sum of squares of real polynomials}" ]
[ "What are the sufficient or necessary conditions on the coefficients of a real polynomial of degree \\(2n\\) such that \\(p(x) \\ge 0\\) for all real numbers \\(x\\)?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 14, "genselect": 5 }
19
0
0
omr-ws-119466352939dc2d8876c9638dd73013f845df9521244759e451b48477054e40
What are the three largest prime factors of 555,555,555,555?
[ "37, 101, 9901" ]
[ "What are the three largest prime factors of 555,555,555,555?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 2, "tir": 26 }
28
0
0
omr-ws-675bc7b1b60fd222ab5aeb420107ae53ffb4c0db4512b3dd003a7e0e963e3ba9
What are the three least significant bits in the binary representation of $3^{101} + 2$?
[ "011" ]
[ "What are the three least significant bits in the binary representation of $3^{101} + 2$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-4d7a2002a602fd0c8df6fa79faa4d58e7f43ccfa13983cf701a5f879228c54f4
What are the total number of different integer values the function \( f(x) = \lfloor x \rfloor + \lfloor 2x \rfloor + \left\lfloor \frac{5x}{3} \right\rfloor + \lfloor 3x \rfloor + \lfloor 4x \rfloor \) takes for real numbers \( x \) with \( 0 \leq x \leq 100 \)?
[ "734" ]
[ "What are the total number of different integer values the function \\( f(x) = \\lfloor x \\rfloor + \\lfloor 2x \\rfloor + \\left\\lfloor \\frac{5x}{3} \\right\\rfloor + \\lfloor 3x \\rfloor + \\lfloor 4x \\rfloor \\) takes for real numbers \\( x \\) with \\( 0 \\leq x \\leq 100 \\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 8, "genselect": 5 }
13
0
0
omr-ws-79139b79924d5741e09a2ed5054d9089545ab662dc9a78ac0dd9cd3502e5149b
What are the two angles formed by the diagonals in a rhombus?
[ "90^\\circ \\text{ and } 90^\\circ" ]
[ "What are the two angles formed by the diagonals in a rhombus?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-a973e4d3d50b8a0e6187b0406a57835302417b3e5e13a8338c7f6869e50cbcd9
What are the two arithmetic means between \( -13 \) and \( 8 \)?
[ "1" ]
[ "What are the two arithmetic means between \\( -13 \\) and \\( 8 \\)?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 12 }
12
0
0
omr-ws-8bfeec6ee55a1b25d5dd1a501ebbbfc65d4bbe9497af2733e284a2dd62dcc4aa
What are the two different cubes that sum to 1729?
[ "\\(10^3 + 9^3\\) and \\(12^3 + 1^3\\)" ]
[ "What are the two different cubes that sum to 1729?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 11, "tir": 27 }
38
0
0
omr-ws-fdd7c02cb6169cef9aa0a83d6debddb721832382ece97ef82d05a54cab03c25d
What are the two divisors of \( 4^{12} - 1 \) that lie between 60 and 80?
[ "63 and 65" ]
[ "What are the two divisors of \\( 4^{12} - 1 \\) that lie between 60 and 80?" ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 32 }
32
0
0
omr-ws-0a75b66181b7617cd7a0306ea0b801f8e6db89358750586ce2d3df525a0dfb87
What are the unit and tenth digits of $2^{19}$?
[ "88" ]
[ "What are the unit and tenth digits of $2^{19}$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 14, "tir": 23 }
37
0
0
omr-ws-778170784113c797bd049670e7c19603aa5dce7cd6b1457775048e13aadedde6
What are the unit and tenth digits when $2007$ is divided by $9$?
[ "3 and 2" ]
[ "What are the unit and tenth digits when $2007$ is divided by $9$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 8, "tir": 25 }
47
0
0
omr-ws-446210b0dbafab60b6eb475bf766548ec5bb1c930d1f33b49b3935303179c676
What are the values of $-1^i$ and $-1^{-i}$?
[ "$e^{-\\pi}$ and $e^{\\pi}$" ]
[ "What are the values of $-1^i$ and $-1^{-i}$?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 1, "tir": 17 }
18
0
0
omr-ws-b9a8ddb8090e548a9f5f2fd77a5b0154680eb8e32a599368a956618ad3ba48c5
What are the values of $\omega^3$ and $1 + \omega + \omega^2$, where $1, \omega,$ and $\omega^2$ are the three cube roots of unity?
[ "\\(\\omega^3 = 1\\) and \\(1 + \\omega + \\omega^2 = 0\\)" ]
[ "What are the values of $\\omega^3$ and $1 + \\omega + \\omega^2$, where $1, \\omega,$ and $\\omega^2$ are the three cube roots of unity?" ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 29 }
29
0
0
omr-ws-04c288c2e7db98c42aa6b261367af57837473929124618563e4d6f04091284e7
What are the values of $k$ such that the roots of the quadratic equation $2x^2 + kx + 12 = 0$, denoted by $p$ and $q$, satisfy $1 < p < 2$ and $3 < q < 4$?
[ "\\( -11 < k < -10 \\)" ]
[ "What are the values of $k$ such that the roots of the quadratic equation $2x^2 + kx + 12 = 0$, denoted by $p$ and $q$, satisfy $1 < p < 2$ and $3 < q < 4$?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 1, "tir": 1 }
16
0
0
omr-ws-5f57fe7c4e64775f5c98b1b3d15e7089f7e0c031269df2bf5119cad3c3c42cf1
What are the values of $n$ when $T_{n}$ is maximum for the sequence defined by $T_{1}= 1$, $T_{2n}= T_{n}$, and $T_{2n+1}=T_{2n}+1$?
[ "\\( 524287, 1048575, 1572863 \\)" ]
[ "What are the values of $n$ when $T_{n}$ is maximum for the sequence defined by $T_{1}= 1$, $T_{2n}= T_{n}$, and $T_{2n+1}=T_{2n}+1$?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 12, "genselect": 3, "tir": 27 }
42
0
0
omr-ws-6a18de90703c05218a908ab73c85e913e873f764325108bd2547db166b4b1cbf
What are the values of \( k \) such that there exist different prime numbers \( p_1, p_2, \ldots, p_k \) satisfying: \[ p_1^2 + p_2^2 + \cdots + p_k^2 = 2010 \]
[ "7" ]
[ "What are the values of \\( k \\) such that there exist different prime numbers \\( p_1, p_2, \\ldots, p_k \\) satisfying:\n\\[ p_1^2 + p_2^2 + \\cdots + p_k^2 = 2010 \\]" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 3, "genselect": 8, "tir": 4 }
15
0
0