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omr-ws-85719061dbe2907e86c03f247b6583378c4e971ca3145404ce33332f6b57e59a
Using the classification of finite abelian groups, determine all finite abelian groups up to isomorphism of order 450.
[ "$\\mathbb{Z}/450\\mathbb{Z}, \\mathbb{Z}/3\\mathbb{Z} \\times \\mathbb{Z}/3\\mathbb{Z} \\times \\mathbb{Z}/25\\mathbb{Z} \\times \\mathbb{Z}/2\\mathbb{Z}, \\mathbb{Z}/3\\mathbb{Z} \\times \\mathbb{Z}/3\\mathbb{Z} \\times \\mathbb{Z}/5\\mathbb{Z} \\times \\mathbb{Z}/5\\mathbb{Z} \\times \\mathbb{Z}/2\\mathbb{Z}, \\...
[ "Using the classification of finite abelian groups, determine all finite abelian groups up to isomorphism of order 450." ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 2 }
2
0
0
omr-ws-1415308828f8858a3d17c12ea87be3a77c06b44d43033db9841c23e32359c980
Using the coordinates of points \( A \) and \( B \), and the angles \( P \) and \( K \) (which are equal), derive a formula to calculate all the points along the arc connecting \( A \) and \( B \) that passes through \( H \).
[ "\\( (146.67, 214.14) \\)" ]
[ "Using the coordinates of points \\( A \\) and \\( B \\), and the angles \\( P \\) and \\( K \\) (which are equal), derive a formula to calculate all the points along the arc connecting \\( A \\) and \\( B \\) that passes through \\( H \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-c1f7d2f10e2e2d89dd69ccf973519e2daab160474626276a1cc717f989553c63
Using the definition $\ln x = \sum_{k \geq 0} \frac{2}{2k+1} \left( \frac{x-1}{x+1} \right)^{2k+1}$ for $x > 0$, calculate the value of $\ln(8) - \ln(2) - \ln(4)$.
[ "0" ]
[ "Using the definition $\\ln x = \\sum_{k \\geq 0} \\frac{2}{2k+1} \\left( \\frac{x-1}{x+1} \\right)^{2k+1}$ for $x > 0$, calculate the value of $\\ln(8) - \\ln(2) - \\ln(4)$." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-0270df488edc9febb77596f0076c60c9be0b7c99b61583f3b0a139b16a21e434
Using the definition of the Gamma function given by \[ \Gamma(x) = \int_{0}^\infty e^{-y} \cdot y^{x-1} \, dy, \] calculate the value of \( \Gamma'(3) \) in terms of \( \gamma \) and \( H_3 \), where \( H_3 \) is the 3rd harmonic number and \( \gamma \) is Euler's constant. Express your answer as a simplified fraction ...
[ "2 H_3 - 2 \\gamma - \\dfrac{2}{3}" ]
[ "Using the definition of the Gamma function given by\n\n\\[ \\Gamma(x) = \\int_{0}^\\infty e^{-y} \\cdot y^{x-1} \\, dy, \\]\n\ncalculate the value of \\( \\Gamma'(3) \\) in terms of \\( \\gamma \\) and \\( H_3 \\), where \\( H_3 \\) is the 3rd harmonic number and \\( \\gamma \\) is Euler's constant. Express your a...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-872e11628127c31d341c5aa39a49f23a1a3bed42eb71d4c5b59f25a4a30731c1
Using the definition of the derivative, find the derivative of the function \( f(z) = \arg(z) \) and determine where this derivative is defined.
[ "The derivative of \\( f(z) = \\arg(z) \\) is not defined anywhere." ]
[ "Using the definition of the derivative, find the derivative of the function \\( f(z) = \\arg(z) \\) and determine where this derivative is defined." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 8, "tir": 26 }
48
0
0
omr-ws-e0c94d776e1af1587604ccd68889b05626c53646b0c44033276b5b399895521c
Using the definition of the derivative, find the derivative of the function \( g(z) = x + y \) (where \( z = x + iy \)) and determine where this derivative is defined.
[ "The derivative is not defined anywhere." ]
[ "Using the definition of the derivative, find the derivative of the function \\( g(z) = x + y \\) (where \\( z = x + iy \\)) and determine where this derivative is defined." ]
[ "aops_c7_college_math", "c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 32 }
48
0
0
omr-ws-320364a400676a1025d6218a60464cc37bf14ff3d044ce5cef8ccfcb07568794
Using the definitions \(\zeta(s) = \sum_{n=1}^\infty \frac{1}{n^s}\) and \(\Gamma(s) = \int_{0}^\infty x^{s-1} e^{-x} \, dx\), calculate the value of \( \int_{0}^\infty \frac{y^{3}}{e^y - 1} \, dy \).
[ "\\dfrac{\\pi^4}{15}" ]
[ "Using the definitions \\(\\zeta(s) = \\sum_{n=1}^\\infty \\frac{1}{n^s}\\) and \\(\\Gamma(s) = \\int_{0}^\\infty x^{s-1} e^{-x} \\, dx\\), calculate the value of \\( \\int_{0}^\\infty \\frac{y^{3}}{e^y - 1} \\, dy \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-5b442e738f787b6980946f334e446084601874022cc5549471afd25d733ac877
Using the definitions of \( \sinh x \) and \( \cosh x \) in terms of \( e^{x} \) and \( e^{-x} \), calculate the value of \( \cosh x \cosh y - \sinh x \sinh y \) when \( x = \ln(3) \) and \( y = \ln(2) \). Express your answer as a simplified fraction.
[ "\\dfrac{13}{12}" ]
[ "Using the definitions of \\( \\sinh x \\) and \\( \\cosh x \\) in terms of \\( e^{x} \\) and \\( e^{-x} \\), calculate the value of \\( \\cosh x \\cosh y - \\sinh x \\sinh y \\) when \\( x = \\ln(3) \\) and \\( y = \\ln(2) \\). Express your answer as a simplified fraction." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-192c12e25a52d91dec919063c47b0e25f93df109b19e67efd1cab380f7134acf
Using the diagonalization of matrix \( A \), find the fundamental matrix \( \Phi(t) \) with \( \Phi(0) = I \). If \( x_0 = \begin{bmatrix} -1 \\ 0 \end{bmatrix} \), find \( x(t) \) for \( t > 0 \).
[ "\\( \\begin{bmatrix} -\\cos(\\omega t) \\\\ \\omega \\sin(\\omega t) \\end{bmatrix} \\)" ]
[ "Using the diagonalization of matrix \\( A \\), find the fundamental matrix \\( \\Phi(t) \\) with \\( \\Phi(0) = I \\). If \\( x_0 = \\begin{bmatrix} -1 \\\\ 0 \\end{bmatrix} \\), find \\( x(t) \\) for \\( t > 0 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-219d6e79d318253cec95228016d991d11db86750e9e2a905d628ca620e4bcc31
Using the digit 2 exactly three times and mathematical symbols, express all numbers from 1 to 12. No English alphabets, words like $\sin$ or $\lim$, or other digits are allowed.
[ "\\( 1 = 2^{2-2}, 2 = 2 + 2 - 2, 3 = 2 + \\frac{2}{2}, 4 = \\sqrt{2 \\times 2}^2, 5 = 2 \\times 2 + \\lfloor \\sqrt{2} \\rfloor, 6 = 2 + 2 + 2, 7 = \\lceil \\sqrt{(2+2)!} \\rceil + 2, 8 = 2 \\times 2 \\times 2, 9 = (2 + \\lfloor \\sqrt{2} \\rfloor)^2, 10 = 2 \\times \\lceil \\sqrt{(2+2)!} \\rceil, 11 = \\frac{22}{2...
[ "Using the digit 2 exactly three times and mathematical symbols, express all numbers from 1 to 12. No English alphabets, words like $\\sin$ or $\\lim$, or other digits are allowed." ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-c3272cf8890fbc225523b840f029b8dfebba5748ebc26c41c0c8135362b2bbc6
Using the digit 3 three times and any combination of operators, create the number 8. You may not append digits (e.g., 33 + 3 is not allowed). (Note: Square root is considered not to use the digit 2.)
[ "\\(\\left(\\frac{3!}{3}\\right)^3\\)" ]
[ "Using the digit 3 three times and any combination of operators, create the number 8. You may not append digits (e.g., 33 + 3 is not allowed). (Note: Square root is considered not to use the digit 2.)" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 7, "tir": 19 }
40
0
0
omr-ws-7eb7cd167e847cfde4de0f3560eb1fbb992e0cb248d3cc94826427343c219436
Using the digit 9 and the four basic operations (+, −, *, /), parentheses, exponentiation, factorial, and square root, construct the number 2023 using as few 9's as possible.
[ "6" ]
[ "Using the digit 9 and the four basic operations (+, −, *, /), parentheses, exponentiation, factorial, and square root, construct the number 2023 using as few 9's as possible." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 1, "genselect": 1 }
2
0
0
omr-ws-546b52c1c94542fa616fa69a2a0a7e8cd7c97e07491ba05d050011388cace72b
Using the digits $(0,1,2,3,4,5,6,7,8,9)$, the four arithmetic operations $(+,-, \times, /)$, exponentiation $(^)$, factorial $(!)$, decimal point $(.)$, and one pair of parentheses exactly one time, form an expression with the maximum possible result. The order of operations is: $1$. (Factorial), $2$. (Exponentiation),...
[ "(9.8)^{76543210!}" ]
[ "Using the digits $(0,1,2,3,4,5,6,7,8,9)$, the four arithmetic operations $(+,-, \\times, /)$, exponentiation $(^)$, factorial $(!)$, decimal point $(.)$, and one pair of parentheses exactly one time, form an expression with the maximum possible result. The order of operations is: $1$. (Factorial), $2$. (Exponentia...
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 2, "genselect": 2 }
4
0
0
omr-ws-9c1af9b095ca6da169b304a80d3dffc5523a51fff310ee8153d34df6321aefab
Using the digits $1$ to $9$, construct two numbers such that their product is maximal.
[ "\\(9642 \\times 87531\\)" ]
[ "Using the digits $1$ to $9$, construct two numbers such that their product is maximal." ]
[ "aops_c6_high_school_olympiads", "c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 6, "genselect": 5, "tir": 23 }
34
0
0
omr-ws-4fc2d683ab6bf45ed8de78e20dba68e6659d3541bd1442b683578d594902b0e0
Using the digits $1$ to $9$, construct two numbers such that their product is minimal.
[ "23456789" ]
[ "Using the digits $1$ to $9$, construct two numbers such that their product is minimal." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 12, "genselect": 6, "tir": 3 }
21
0
0
omr-ws-ddaff4d0bd3ee1b6478ef9cbfa77648f3829e4b51766b127dbdc631441bc50e6
Using the digits $1, 2, 3, 4, 5$, players $A$ and $B$ compose a $2005$-digit number $N$ by selecting one digit at a time, with $A$ selecting the first digit, $B$ the second, $A$ the third, and so on. Player $A$ wins if and only if $N$ is divisible by $9$. Who will win if both players play optimally?
[ "B wins." ]
[ "Using the digits $1, 2, 3, 4, 5$, players $A$ and $B$ compose a $2005$-digit number $N$ by selecting one digit at a time, with $A$ selecting the first digit, $B$ the second, $A$ the third, and so on. Player $A$ wins if and only if $N$ is divisible by $9$. Who will win if both players play optimally?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 16, "genselect": 7, "tir": 3 }
26
0
0
omr-ws-7d53bff60d6e82abd9da38a1c324ddf032156b70b8ae32e81d37b80402fbe4f6
Using the digits $1, 2, 3, 4, 5, 6$ without repetition, three two-digit numbers are formed. The numbers are then added together. How many different sums can be obtained through this procedure?
[ "10" ]
[ "Using the digits $1, 2, 3, 4, 5, 6$ without repetition, three two-digit numbers are formed. The numbers are then added together. How many different sums can be obtained through this procedure?" ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 9 }
25
0
0
omr-ws-9c35e47290964a2db945e46770652376ffb5c5781987afced4aaafc047a54637
Using the digits $1, 2, 3, 4, 5, 6, 7, 8, 9$ exactly once and the mathematical operations of multiplication (*) and power (^, as in $a^{b}$), how close can you come to the number $123456789$? You can use parentheses as required.
[ "\\(1 \\cdot 2^{9} \\cdot 4 \\cdot 5 \\cdot 6^{3} \\cdot 7 \\cdot 8 = 123,863,040\\)" ]
[ "Using the digits $1, 2, 3, 4, 5, 6, 7, 8, 9$ exactly once and the mathematical operations of multiplication (*) and power (^, as in $a^{b}$), how close can you come to the number $123456789$? You can use parentheses as required." ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-ba589bd266020471d29b8feafc85554cfcd80dca85e9003afe7ec964e4a47815
Using the digits $1, 2, 3, 4,$ and $5$ without repetition, the number of $5$-digit numbers is $5! = 120$. If these numbers are listed in increasing order, what is the number that comes in the $60$th place?
[ "32541" ]
[ "Using the digits $1, 2, 3, 4,$ and $5$ without repetition, the number of $5$-digit numbers is $5! = 120$. If these numbers are listed in increasing order, what is the number that comes in the $60$th place?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-4289beea163e835995f52bc74dd86dc37c9d86fe2244ad4bf96e8ad51d30f6f5
Using the digits $1, 3, 5, 7, 9$, how many different numbers less than 130 can be formed?
[ "9" ]
[ "Using the digits $1, 3, 5, 7, 9$, how many different numbers less than 130 can be formed?" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-6f6763d338a3772efa4a9fb04e2ef1b8d059b81100aacdef03dddd82094f70c7
Using the digits ${1,3,5,7,9}$ exactly once each, form two integers such that their product is maximized. What are these two integers?
[ "\\(751\\) and \\(93\\)" ]
[ "Using the digits ${1,3,5,7,9}$ exactly once each, form two integers such that their product is maximized. What are these two integers?" ]
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "tir" ]
{ "tir": 23 }
23
0
0
omr-ws-985408f789e6ab8c301f26c3bc80a82a4a06b405fbb796a7fcc25c3e8ad0437f
Using the digits 0, 1, 2, 3, 4, 5, 6, how many five-digit numbers greater than 24000 can be made?
[ "10633" ]
[ "Using the digits 0, 1, 2, 3, 4, 5, 6, how many five-digit numbers greater than 24000 can be made?" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-4988c199400ac70b9bdad4a21b1b869a63ba33113c9762971eedb951be2db94d
Using the digits 0, 1, 2, 3, 4, and 5, find the number of 10-digit numbers such that the difference between consecutive digits is always 1.
[ "990" ]
[ "Using the digits 0, 1, 2, 3, 4, and 5, find the number of 10-digit numbers such that the difference between consecutive digits is always 1." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 13, "genselect": 7 }
20
0
0
omr-ws-24e4bcea307bf7b1d640aba58bbce96f0cff306aaba627aa527a45a8543fe9e4
Using the digits 0, 1, 2, 3, and 4, find the number of 13-digit sequences such that the difference between any two consecutive digits is 1. Examples of such sequences include 0123432123432, 2323432321234, and 3210101234323.
[ "3402" ]
[ "Using the digits 0, 1, 2, 3, and 4, find the number of 13-digit sequences such that the difference between any two consecutive digits is 1. Examples of such sequences include 0123432123432, 2323432321234, and 3210101234323." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-b3c0fbcd709b6f599a88ad3faf5f8e72ec154a69f9af88f8552ac3d802c36e7a
Using the digits 0, 1, 3, 5, and 7 without repetition, how many 5-digit natural numbers can be formed which are divisible by 5?
[ "42" ]
[ "Using the digits 0, 1, 3, 5, and 7 without repetition, how many 5-digit natural numbers can be formed which are divisible by 5?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-b6093a8938800ae6a9097b668c91f93bfb12ba717aa2a6d6779311940866a363
Using the digits 1 through 7 once each, how many numbers are there where the digits alternate between odd and even?
[ "144" ]
[ "Using the digits 1 through 7 once each, how many numbers are there where the digits alternate between odd and even?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 1 }
17
0
0
omr-ws-5104256d4bd494ad615b76713df1cdff6a99b4d47d7084f2759271b7146a0113
Using the digits 1 through 9 exactly once, construct two numbers such that their product is maximized.
[ "9642 \\times 87531" ]
[ "Using the digits 1 through 9 exactly once, construct two numbers such that their product is maximized." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 11, "genselect": 7 }
18
0
0
omr-ws-8e99d2e7fa485593b5186099715d2033a782f20d61bcd63862577aaf8844d244
Using the digits 1 through 9 exactly once, construct two numbers such that their product is minimized.
[ "23456789" ]
[ "Using the digits 1 through 9 exactly once, construct two numbers such that their product is minimized." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 11, "genselect": 6 }
17
0
0
omr-ws-dbf6bd012b0f51d462de0a6bde688e7f335e775ab850df601ac1390d29dbc9c5
Using the digits 1 through 9 exactly once, form three 3-digit numbers such that their product is maximized. Determine the three 3-digit factors and their product.
[ "763, 852, 941; product = 611,721,516" ]
[ "Using the digits 1 through 9 exactly once, form three 3-digit numbers such that their product is maximized. Determine the three 3-digit factors and their product." ]
[ "aops_c6_high_school_olympiads", "c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 7, "tir": 30 }
51
0
0
omr-ws-7cf7c7e1e1d884ad47e70b3261845c8d54f1d99dc933bc04dde2e5d96474be74
Using the digits 1 through 9 exactly once, form three 3-digit numbers. What is the smallest possible product of these three numbers?
[ "13994694" ]
[ "Using the digits 1 through 9 exactly once, form three 3-digit numbers. What is the smallest possible product of these three numbers?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 13, "genselect": 8 }
21
0
0
omr-ws-a6b301bab6051ba3a705087982ea83e12d678a4e66772163b9d7fc34cf31de53
Using the digits 1 through 9, form two numbers such that their product is as large as possible. Each digit must be used exactly once. Which are the two numbers?
[ "96421 and 8753" ]
[ "Using the digits 1 through 9, form two numbers such that their product is as large as possible. Each digit must be used exactly once. Which are the two numbers?" ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 4 }
4
0
0
omr-ws-0a307ea899b0581898d676f623a5f8a76f71c620db6d91a820ccbaca4fed9957
Using the digits 1 through 9, how many different 9-digit numbers can be formed so that all two adjacent digits are consecutive numbers? Repetitions of digits are allowed.
[ "1370" ]
[ "Using the digits 1 through 9, how many different 9-digit numbers can be formed so that all two adjacent digits are consecutive numbers? Repetitions of digits are allowed." ]
[ "aops_c6_high_school_olympiads", "c6_high_school_olympiads" ]
[ "cot", "genselect", "tir" ]
{ "cot": 14, "genselect": 7, "tir": 23 }
44
0
0
omr-ws-7d35564912c631b3dd09ddb8b169db5011b01e14669594ca1a90036025bddd64
Using the digits 1 to 9 exactly once, construct two numbers such that their product is maximal.
[ "9642 \\times 87531" ]
[ "Using the digits 1 to 9 exactly once, construct two numbers such that their product is maximal." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 12 }
12
0
0
omr-ws-5bfe3b8febf2c9be5cf199d938a28367fede8856fd304c16e821367e1926f4ae
Using the digits 1 to 9 exactly once, construct two numbers such that their product is minimal.
[ "23456789" ]
[ "Using the digits 1 to 9 exactly once, construct two numbers such that their product is minimal." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 12, "genselect": 5 }
17
0
0
omr-ws-9eae953cd5e3c2e3fbb68cf0c6dad062067e45f4ecdbfb0b3d4ba5bf8dd77bc9
Using the digits 1, 2, 3, 4, 5 and the mathematical operations +, -, *, /, ^, and !, along with concatenation, how close can you come to the number 67890?
[ "\\(67718.7\\)" ]
[ "Using the digits 1, 2, 3, 4, 5 and the mathematical operations +, -, *, /, ^, and !, along with concatenation, how close can you come to the number 67890?" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-76cc6991b5f58c2f775be49490ee59eee36e6e3472ccbfe4c4fd21dee7d0d758
Using the digits 1, 2, 3, 4, 5, how many even three-digit numbers less than 500 can be formed if each digit can be used more than once?
[ "40" ]
[ "Using the digits 1, 2, 3, 4, 5, how many even three-digit numbers less than 500 can be formed if each digit can be used more than once?" ]
[ "MATH_training_set" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-ae823d9f4c2be25b6210d23d3dc3e5e38a6e0c1c305fa0c5453c54604389834a
Using the digits 1, 2, 3, 4, and 5 exactly once, form all possible five-digit numbers. Calculate the sum of the squares of the numbers in one of the two groups into which these numbers can be divided such that the sum of the squares of the numbers in each group is equal. Find this sum.
[ "78113218860" ]
[ "Using the digits 1, 2, 3, 4, and 5 exactly once, form all possible five-digit numbers. Calculate the sum of the squares of the numbers in one of the two groups into which these numbers can be divided such that the sum of the squares of the numbers in each group is equal. Find this sum." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 7 }
14
0
0
omr-ws-57d00ec8e128be031580534ca2973c76e618db06a69704fa5cb19c20f4b7c254
Using the digits 1, 2, 3, 4, and 5, how many different 16-digit numbers can be formed such that for every adjacent two digits, either both are the same or at least one of them is 1?
[ "64570081" ]
[ "Using the digits 1, 2, 3, 4, and 5, how many different 16-digit numbers can be formed such that for every adjacent two digits, either both are the same or at least one of them is 1?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-bed42b17a627748425ecc9754b963137c004398b5d1f01c672b5986511f99302
Using the digits 1, 2, 3, 5, and 7, how many 5-digit numbers greater than 50000 can be formed?
[ "48" ]
[ "Using the digits 1, 2, 3, 5, and 7, how many 5-digit numbers greater than 50000 can be formed?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 1 }
17
0
0
omr-ws-53d33b1c46cfd8be754d33f3cde514b433b6a532d8b3e7bd9fba6e48abdffa62
Using the digits 1, 2, 3, and 4 exactly once, along with the operations +, -, ×, /, parentheses, and powers, what is the largest number you can make?
[ "\\((.3)^{-\\left((.2)^{-\\left((.1)^{(-4)}\\right)}\\right)}\\)" ]
[ "Using the digits 1, 2, 3, and 4 exactly once, along with the operations +, -, ×, /, parentheses, and powers, what is the largest number you can make?" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-5a1978ded773ccc382f6b0846417ae6ebd083b0efc2cd914db1f895d0dd5e4af
Using the digits 1963 and the operations +, -, /, and *, along with bracketing, form mathematical expressions. At least one operation must be placed between two digits, and the minus sign cannot be used as a negative sign. Find the smallest natural number that cannot be expressed in this way. Calculate this number.
[ "14" ]
[ "Using the digits 1963 and the operations +, -, /, and *, along with bracketing, form mathematical expressions. At least one operation must be placed between two digits, and the minus sign cannot be used as a negative sign. Find the smallest natural number that cannot be expressed in this way. Calculate this number...
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 7, "genselect": 8 }
15
0
0
omr-ws-a2510e2a21241a61c27407b2df2d614325d65d275b412d90f5b59e7af80c3c24
Using the digits 2, 3, 5, 6, and 7, form a two-digit number and a three-digit number that give the least product.
[ "9175" ]
[ "Using the digits 2, 3, 5, 6, and 7, form a two-digit number and a three-digit number that give the least product." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 10, "genselect": 2, "tir": 20 }
32
0
0
omr-ws-078ed198d21ec61b4ae3170b13bafe59b931a7c10cf98881c83e2efa31eb9dbe
Using the digits 5, 5, 5, and 1 exactly once, along with the operators +, -, *, and /, form the number 24. Note that expressions like $5*5-1^{5}$ and concatenations like $55$ are not allowed.
[ "\\( 5 \\cdot \\left(5 - \\frac{1}{5}\\right) \\)" ]
[ "Using the digits 5, 5, 5, and 1 exactly once, along with the operators +, -, *, and /, form the number 24. Note that expressions like $5*5-1^{5}$ and concatenations like $55$ are not allowed." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 24 }
40
0
0
omr-ws-a75c7b5875e7953fce47089726f097c3891a3d43f5921e7b87c26603deb21fd5
Using the digits \(a, b, c, d, e, f\) (all distinct from each other), Carlos wrote the three-digit number \(\overline{def}\) and Emilio wrote the three-digit number \(\overline{abc}\). If Carlos' number is greater by 9 than Emilio's number, find the least possible value of \(a + b + c\).
[ "14" ]
[ "Using the digits \\(a, b, c, d, e, f\\) (all distinct from each other), Carlos wrote the three-digit number \\(\\overline{def}\\) and Emilio wrote the three-digit number \\(\\overline{abc}\\). If Carlos' number is greater by 9 than Emilio's number, find the least possible value of \\(a + b + c\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 15, "genselect": 8, "tir": 18 }
41
0
0
omr-ws-da4b13a9ff8e8f447f951d0d6d605e81a528886cd319f757ca2f85e229049a0b
Using the digits from 0 to 9 without repetition, create a ten-digit number such that the first digit is divisible by 1, the first two digits form a number divisible by 2, the first three digits form a number divisible by 3, and so on, up to the entire ten-digit number being divisible by 10. (Optional) Prove that there ...
[ "3816547290" ]
[ "Using the digits from 0 to 9 without repetition, create a ten-digit number such that the first digit is divisible by 1, the first two digits form a number divisible by 2, the first three digits form a number divisible by 3, and so on, up to the entire ten-digit number being divisible by 10.\n\n(Optional) Prove tha...
[ "aops_c4_high_school_math", "c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 13, "tir": 21 }
34
0
0
omr-ws-08fc5513bbea3f4dfb369f982a402eddc6ce70faa74ba193d78077673e0f3944
Using the digits from 1 to 10, how many ways can the blanks be filled with +, -, *, /, or nothing (to combine digits) to make the expression equal to 100?
[ "0" ]
[ "Using the digits from 1 to 10, how many ways can the blanks be filled with +, -, *, /, or nothing (to combine digits) to make the expression equal to 100?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-b5ff815151d28681d36379d56327961937cc9136056ca2377c67cd11b5898fc4
Using the digits from 1 to 10, how many ways can the blanks be filled with +, -, or nothing (to combine digits) to make the expression equal to 100?
[ "0" ]
[ "Using the digits from 1 to 10, how many ways can the blanks be filled with +, -, or nothing (to combine digits) to make the expression equal to 100?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 1 }
5
0
0
omr-ws-ddb8a573ae01f2924377afbb01440b936d013a1347e0e89a99d4597acb2d806b
Using the digits from the set {2, 0, 1, 5}, how many n-digit numbers can be formed that are divisible by 3?
[ "\\begin{cases} \n4^{n-1} + 1 & \\text{if } n \\equiv 0 \\pmod{3}, \\\\\n4^{n-1} - 1 & \\text{if } n \\equiv 1 \\pmod{3}, \\\\\n4^{n-1} & \\text{if } n \\equiv 2 \\pmod{3}.\n\\end{cases}" ]
[ "Using the digits from the set {2, 0, 1, 5}, how many n-digit numbers can be formed that are divisible by 3?" ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 6 }
6
0
0
omr-ws-150e5a1db6fb8adbfaa60eda6f40ef10e654cd50e7e5fdce156e6aa492c66e13
Using the digits of the year 2005 in order and the standard symbols $+$, $-$, $\times$, $\div$, $\sqrt{}$, brackets, and $!$, create the longest unbroken list of consecutive integers starting from 1. Find the longest unbroken list possible and a long list with as few breaks as possible.
[ "27" ]
[ "Using the digits of the year 2005 in order and the standard symbols $+$, $-$, $\\times$, $\\div$, $\\sqrt{}$, brackets, and $!$, create the longest unbroken list of consecutive integers starting from 1. Find the longest unbroken list possible and a long list with as few breaks as possible." ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-304a231016598cabef17dd681cf687f71c6da3dd051058595f99b76e5b875b7d
Using the distance formula $d = |x_2 - x_1| + |y_2 - y_1|$, find the locus of all points $(x, y)$ satisfying $x \ge 0$, $y \ge 0$ and which are equidistant from the origin $(0,0)$ and a fixed point $(a,b)$ in the plane, where $a > b$. Distinguish the cases according to the signs of $a$ and $b$.
[ "\\( x = \\frac{a - b}{2} \\) or \\( x + y = \\frac{a + b}{2} \\)" ]
[ "Using the distance formula $d = |x_2 - x_1| + |y_2 - y_1|$, find the locus of all points $(x, y)$ satisfying $x \\ge 0$, $y \\ge 0$ and which are equidistant from the origin $(0,0)$ and a fixed point $(a,b)$ in the plane, where $a > b$. Distinguish the cases according to the signs of $a$ and $b$." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 2, "tir": 2 }
4
0
0
omr-ws-90f2470c5b970c0365169f561628460d41c55de942e120e1aeadf8f5559bac1a
Using the distribution of \( T_{k+1} - T_k - T \), determine the pdf for \( T_k \). Is there any difference between the pdf of \( T_k \) and \( T_k - T \)?
[ "\\frac{\\lambda^k t^{k-1} e^{-\\lambda t}}{(k-1)!}" ]
[ "Using the distribution of \\( T_{k+1} - T_k - T \\), determine the pdf for \\( T_k \\). Is there any difference between the pdf of \\( T_k \\) and \\( T_k - T \\)?" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 3, "genselect": 1 }
4
0
0
omr-ws-f7d4af2a3fc1c27dc5e1846e146417f816017d9933f3c6cac205a5a9730c6965
Using the dominated convergence theorem (or otherwise), find \(\lim_{n \to \infty} \mathbb{E}\left(\frac{Y_n}{Y_n + 1}\right)^2\) where \(Y_n = \frac{1}{n} \sum_{i=1}^{n} X_i\) and \(X_1, X_2, \ldots\) are i.i.d. with common mean \(0\) and common finite variance \(\sigma^2\).
[ "0" ]
[ "Using the dominated convergence theorem (or otherwise), find \\(\\lim_{n \\to \\infty} \\mathbb{E}\\left(\\frac{Y_n}{Y_n + 1}\\right)^2\\) where \\(Y_n = \\frac{1}{n} \\sum_{i=1}^{n} X_i\\) and \\(X_1, X_2, \\ldots\\) are i.i.d. with common mean \\(0\\) and common finite variance \\(\\sigma^2\\)." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-d040f04462783ca2f34cafc571b203637b0612abe40c29cf73f23f23819cd143
Using the encoding matrix \( A = \begin{pmatrix} 2 & 5 \\ 1 & 3 \end{pmatrix} \), how would you encode the message "MATHS IS GREAT" and what message would be received?
[ "YMVOYQOKCDRF" ]
[ "Using the encoding matrix \\( A = \\begin{pmatrix} 2 & 5 \\\\ 1 & 3 \\end{pmatrix} \\), how would you encode the message \"MATHS IS GREAT\" and what message would be received?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 12, "genselect": 8 }
20
0
0
omr-ws-5cdf7b524870615b49442796411e51b98473b18fc63f5e4a69d72e6c90915ba7
Using the encoding matrix \( A = \begin{pmatrix} 2 & 5 \\ 1 & 3 \end{pmatrix} \), how would you encode the word "MATH" and what "word" would be sent using this code?
[ "EPBR" ]
[ "Using the encoding matrix \\( A = \\begin{pmatrix} 2 & 5 \\\\ 1 & 3 \\end{pmatrix} \\), how would you encode the word \"MATH\" and what \"word\" would be sent using this code?" ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect" ]
{ "cot": 8, "genselect": 3 }
11
0
0
omr-ws-782ea1d25de601c1089753329e88b64bb7b385b87c1cf92926ce6a960926ca87
Using the equality \(\overrightarrow{OA_0} + \overrightarrow{A_0A_1} + \overrightarrow{A_1A_2} + \cdots + \overrightarrow{A_nA_{n-1}} = \overrightarrow{OA_{n+1}}\), express the sums \(\sum_{k=0}^n \cos k\alpha\) and \(\sum_{k=0}^n \sin k\alpha\) in terms of \(n\) and \(\alpha\).
[ "\\(\\sum_{k=0}^n \\cos k\\alpha = \\frac{\\sin \\left(\\frac{(n+1)\\alpha}{2}\\right) \\cos \\left(\\frac{n\\alpha}{2}\\right)}{\\sin \\left(\\frac{\\alpha}{2}\\right)}\\), \\(\\sum_{k=0}^n \\sin k\\alpha = \\frac{\\sin \\left(\\frac{(n+1)\\alpha}{2}\\right) \\sin \\left(\\frac{n\\alpha}{2}\\right)}{\\sin \\left(\...
[ "Using the equality \\(\\overrightarrow{OA_0} + \\overrightarrow{A_0A_1} + \\overrightarrow{A_1A_2} + \\cdots + \\overrightarrow{A_nA_{n-1}} = \\overrightarrow{OA_{n+1}}\\), express the sums \\(\\sum_{k=0}^n \\cos k\\alpha\\) and \\(\\sum_{k=0}^n \\sin k\\alpha\\) in terms of \\(n\\) and \\(\\alpha\\)." ]
[ "aops_c7_college_math" ]
[ "tir" ]
{ "tir": 8 }
8
0
0
omr-ws-2ea5817a7f5cf6ef5c7550fd1196952f2c9e234d48dc35da45623c5d7fc06656
Using the equation $\cos 7 \theta = 0$, calculate the value of \[ \sin^{2} \frac{\pi}{14} + \sin^{2} \frac{3 \pi}{14} + \sin^{2} \frac{5 \pi}{14}. \]
[ "\\dfrac{5}{4}" ]
[ "Using the equation $\\cos 7 \\theta = 0$, calculate the value of \n\n\\[\n\\sin^{2} \\frac{\\pi}{14} + \\sin^{2} \\frac{3 \\pi}{14} + \\sin^{2} \\frac{5 \\pi}{14}.\n\\]" ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-9fe632f05119969080cafa3a9b275afaffe44a1857a524d79a5cb0a49b1e4c19
Using the expansion \[ \frac{\sin(\pi z)}{\pi} = z \prod_{k=1}^{\infty} \left(1 - \frac{z^2}{k^2}\right), \] evaluate the product \[ P = \prod_{k=1}^{10} \frac{(2k)^2}{(2k-1)(2k+1)}. \] Express your answer as a simplified fraction.
[ "no_valid_answer_found" ]
[ "Using the expansion\n\\[\n\\frac{\\sin(\\pi z)}{\\pi} = z \\prod_{k=1}^{\\infty} \\left(1 - \\frac{z^2}{k^2}\\right),\n\\]\nevaluate the product\n\\[\nP = \\prod_{k=1}^{10} \\frac{(2k)^2}{(2k-1)(2k+1)}.\n\\]\nExpress your answer as a simplified fraction." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-30ede8ed18ad5f5eff789a2116a3e9e5dfb4ba966eb7af96362b84291607f10b
Using the expansion of a natural number \( n \) in base 8, determine the criterion for divisibility by 7.
[ "The sum of the digits of the number in base 8 must be divisible by 7." ]
[ "Using the expansion of a natural number \\( n \\) in base 8, determine the criterion for divisibility by 7." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 30 }
46
0
0
omr-ws-c946791f83b6c2e5264a69ff2de7a48f0d6450c208e2bc0103b99e55811d2f0b
Using the expression $\frac{1}{2} \int(x\frac{dy}{dt} -y\frac{dx}{dt})$, calculate the value of $[A] - [P] - \pi a^{2}$, where $[A]$ is the area swept out by $OA$, and $f=\frac{1}{2}\int_{0}^{2\pi} ((x+\frac{dy}{dt})\cos t + (y-\frac{dx}{dt})\sin t)dt$. Express your answer in terms of $a$ and $f$.
[ "-f" ]
[ "Using the expression $\\frac{1}{2} \\int(x\\frac{dy}{dt} -y\\frac{dx}{dt})$, calculate the value of $[A] - [P] - \\pi a^{2}$, where $[A]$ is the area swept out by $OA$, and $f=\\frac{1}{2}\\int_{0}^{2\\pi} ((x+\\frac{dy}{dt})\\cos t + (y-\\frac{dx}{dt})\\sin t)dt$. Express your answer in terms of $a$ and $f$." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 4, "genselect": 6 }
10
0
0
omr-ws-ce97ca44aae2575f499f83295a33cbba3ba9f0fc8ac7d258d7daf4f7850d8af2
Using the expressions \(x^2-1\), \(3\), \(x^2+x+1\), \(\frac{x^2-1}{x}\), \(x^2\), and \(x-2\), combine them using addition, subtraction, multiplication, and division to reach \(x\). Exponents and square roots are not allowed.
[ "\\(\\frac{{x^2-1}}{\\frac{x^2-1}{x}} \\times \\frac{(x^2 + x + 1 - (x^2) - (x-2))}{3}=x\\)" ]
[ "Using the expressions \\(x^2-1\\), \\(3\\), \\(x^2+x+1\\), \\(\\frac{x^2-1}{x}\\), \\(x^2\\), and \\(x-2\\), combine them using addition, subtraction, multiplication, and division to reach \\(x\\). Exponents and square roots are not allowed." ]
[ "aops_c4_high_school_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 13, "genselect": 6, "tir": 13 }
32
0
0
omr-ws-95beffa69978361a97dfb640ff5c869c4982267ffb77e3eac0955d7bfd371a99
Using the expressions found for \( C_{n} \) and \( S_{n} \), find \( \int_{0}^{\pi} x^{5} \sin x\ dx \).
[ "\\(\\pi^{5} - 20 \\pi^{3} + 120 \\pi\\)" ]
[ "Using the expressions found for \\( C_{n} \\) and \\( S_{n} \\), find \\( \\int_{0}^{\\pi} x^{5} \\sin x\\ dx \\)." ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 26 }
42
0
0
omr-ws-cec94e4f9bdee235a71468f190016155731096018d0563da37eef361b06e1a06
Using the extended Euclid's algorithm, find the multiplicative inverse of \( 1234 \) modulo \( 4321 \).
[ "3239" ]
[ "Using the extended Euclid's algorithm, find the multiplicative inverse of \\( 1234 \\) modulo \\( 4321 \\)." ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 14, "tir": 28 }
42
0
0
omr-ws-a1ca7a1e08fb7eeb838c2d5dc24c18173c5f3c83c3502f9d8ae3272505bacb12
Using the extended Euclid's algorithm, find the multiplicative inverse of \( 550 \) modulo \( 1769 \).
[ "544" ]
[ "Using the extended Euclid's algorithm, find the multiplicative inverse of \\( 550 \\) modulo \\( 1769 \\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-11822ef43a176d7f7fcbf2e86644119ebcb76c05ea454c3ee8c59f77a9a51784
Using the fact that if \( I - A \) is nonsingular, then \( \sum_{k=0}^{n} A^k = (I - A^{n+1})(I - A)^{-1} \), find some trigonometric summation formulas, where \( A = \begin{pmatrix} t\cos{\varphi} & -t\sin{\varphi} \\ t\sin{\varphi} & t\cos{\varphi} \end{pmatrix} \) and \( A^0 := I \).
[ "\n\\begin{aligned}\n\\sum_{k=0}^{n} t^k \\cos(k\\varphi) &= \\frac{1 - t \\cos \\varphi - t^{n+1} \\cos((n+1)\\varphi) + t^{n+2} \\cos(n\\varphi)}{1 - 2t \\cos \\varphi + t^2}, \\\\\n\\sum_{k=0}^{n} t^k \\sin(k\\varphi) &= \\frac{t \\sin \\varphi - t^{n+1} \\sin((n+1)\\varphi) + t^{n+2} \\sin(n\\varphi)}{1 - 2t \\...
[ "Using the fact that if \\( I - A \\) is nonsingular, then \\( \\sum_{k=0}^{n} A^k = (I - A^{n+1})(I - A)^{-1} \\), find some trigonometric summation formulas, where \\( A = \\begin{pmatrix} t\\cos{\\varphi} & -t\\sin{\\varphi} \\\\ t\\sin{\\varphi} & t\\cos{\\varphi} \\end{pmatrix} \\) and \\( A^0 := I \\)." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 9 }
9
0
0
omr-ws-4ec5347c6cf676333b790f53c114a3fb9c07b9023917e12c61c4a2ff7864acfc
Using the formula $A = P(1 + r)^n$, determine how long it will take for $\$250.00$ to increase to $\$500$ at 4% annual interest.
[ "17.67" ]
[ "Using the formula $A = P(1 + r)^n$, determine how long it will take for $\\$250.00$ to increase to $\\$500$ at 4% annual interest." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 15 }
31
0
0
omr-ws-082c7ab1070531b65fbbe17dbadc8014b09c29951cceb6a3bad0d56f87ebe817
Using the formula $\mathcal{L}^{-1} \{\tfrac{\ln s}{s} \} = - \ln t - \gamma$, find the expression for $\mathcal{L} \{\ln (2t) \}$.
[ "\\dfrac{\\ln 2 - \\gamma - \\ln s}{s}" ]
[ "Using the formula $\\mathcal{L}^{-1} \\{\\tfrac{\\ln s}{s} \\} = - \\ln t - \\gamma$, find the expression for $\\mathcal{L} \\{\\ln (2t) \\}$." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-5b15c2d6fed8a4c3627067c995134e0d24678b3e524d0a73855ec174d813c3cc
Using the formula $\pi \cot(\pi z) = \frac{1}{z} + \sum_{n=1}^{\infty} \frac{2z}{z^2 - n^2}$, calculate the values of $\zeta(2k)$ in terms of Bernoulli numbers and powers of $\pi$.
[ "\\zeta(2k) = \\frac{(-1)^{k+1} B_{2k} (2\\pi)^{2k}}{2 (2k)!}" ]
[ "Using the formula $\\pi \\cot(\\pi z) = \\frac{1}{z} + \\sum_{n=1}^{\\infty} \\frac{2z}{z^2 - n^2}$, calculate the values of $\\zeta(2k)$ in terms of Bernoulli numbers and powers of $\\pi$." ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-c435cdc6b2553a0f2dd907c46ac836933bb6510b3f5ea5920a870ca5b767eddf
Using the formula \( d = 0.045r^2 + 1.1r \), calculate the stopping distance \( d \) in feet for a car traveling at 40 mph, 55 mph, and 65 mph.
[ "116, 197, 262" ]
[ "Using the formula \\( d = 0.045r^2 + 1.1r \\), calculate the stopping distance \\( d \\) in feet for a car traveling at 40 mph, 55 mph, and 65 mph." ]
[ "aops_c4_high_school_math" ]
[ "tir" ]
{ "tir": 29 }
29
0
0
omr-ws-2ede08ed84c2c97f6e7a880aaa80424ada9541143bdb0ef2c79570768f930632
Using the formula \( n^2 + 3^2 = x^2 \), find two values of \( n \) and two corresponding values of \( x \) that satisfy the formula, excluding \( n = 4 \) and \( x = 5 \).
[ "n = -4, x = -5" ]
[ "Using the formula \\( n^2 + 3^2 = x^2 \\), find two values of \\( n \\) and two corresponding values of \\( x \\) that satisfy the formula, excluding \\( n = 4 \\) and \\( x = 5 \\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 7 }
7
0
0
omr-ws-cd8ca4c2a801b7a3a5157646b689c35569863bd1226c2a9db9f73d7cfddc3ba2
Using the formula \( y_2(x) = y_1(x) \int_{x_0}^{x} \frac{W(t)}{y_1(t)^2} \, dt \) with \( x_0 = 0 \) and expanding the integrand in powers of \( t \) to order \( t^3 \), find the first three non-zero terms in the power series expansion for a solution \( y_2 \) of the differential equation \( xy'' - (1 - x^2)y' - (1 + ...
[ "\\( x - \\frac{3x^2}{2} + \\frac{5x^3}{6} \\)" ]
[ "Using the formula \\( y_2(x) = y_1(x) \\int_{x_0}^{x} \\frac{W(t)}{y_1(t)^2} \\, dt \\) with \\( x_0 = 0 \\) and expanding the integrand in powers of \\( t \\) to order \\( t^3 \\), find the first three non-zero terms in the power series expansion for a solution \\( y_2 \\) of the differential equation \\( xy'' - ...
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-164b8a6bfef2598cb4c0ae9d27a5a71f045bc29564863ec4e882d8624b30d034
Using the formula \(1 + x + x^2 + \cdots + x^n = \frac{x^{n+1} - 1}{x-1}\), determine the formula for the sum \(1 + 2x + 3x^2 + 4x^3 + 5x^4\) by differentiating and multiplying by \(x\).
[ "\\(\\frac{5 x^6 - 6 x^5 + 1}{(x - 1)^2}\\)" ]
[ "Using the formula \\(1 + x + x^2 + \\cdots + x^n = \\frac{x^{n+1} - 1}{x-1}\\), determine the formula for the sum \\(1 + 2x + 3x^2 + 4x^3 + 5x^4\\) by differentiating and multiplying by \\(x\\)." ]
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 16, "tir": 2 }
18
0
0
omr-ws-eefac8ebcb1edc2cca838fa3d26653096e2afb09d9623f967b632a6ba49a78d6
Using the formula \(1 + x + x^2 + \cdots + x^n = \frac{x^{n+1} - 1}{x-1}\), determine the formula for the sum \(1^2x + 2^2x^2 + 3^2x^3 + 4^2x^4\) by differentiating and multiplying by \(x\).
[ "\\(\\frac{25 x^7 - 59 x^6 + 36 x^5 - x - 1}{(x-1)^3}\\)" ]
[ "Using the formula \\(1 + x + x^2 + \\cdots + x^n = \\frac{x^{n+1} - 1}{x-1}\\), determine the formula for the sum \\(1^2x + 2^2x^2 + 3^2x^3 + 4^2x^4\\) by differentiating and multiplying by \\(x\\)." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-7988bdb99cc0d256381d725745b07b9648139468800db26b2360ced98caef361
Using the formula derived in Problem 2 and the error term from Problem 3, calculate the smallest positive integer $N$ such that the number of primes less than or equal to $N$ differs from $\frac{N}{\ln(N)}$ by less than $100$.
[ "8100" ]
[ "Using the formula derived in Problem 2 and the error term from Problem 3, calculate the smallest positive integer $N$ such that the number of primes less than or equal to $N$ differs from $\\frac{N}{\\ln(N)}$ by less than $100$." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 3, "genselect": 2 }
5
0
0
omr-ws-ef25f5360a490b36c51ce5f3e3b8ec90182a09d7f75e1a9514cdd4b5844a07d6
Using the formula for the sum of a geometric progression \( 1 + x + x^2 + \ldots + x^n = \frac{1 - x^{n+1}}{1 - x} \) (where \( x \neq 1 \)), deduce the formula for \( 1 + x + x^2 + \ldots + nx^{n-1} \).
[ "\\frac{1 - (n+1)x^n + nx^{n+1}}{(1 - x)^2}" ]
[ "Using the formula for the sum of a geometric progression \\( 1 + x + x^2 + \\ldots + x^n = \\frac{1 - x^{n+1}}{1 - x} \\) (where \\( x \\neq 1 \\)), deduce the formula for \\( 1 + x + x^2 + \\ldots + nx^{n-1} \\)." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 15, "genselect": 8 }
23
0
0
omr-ws-8c69e2ec51cddf2c6a7fd87055331eccbaaef7a7b8ac3188dc07a3e9053c4a06
Using the four triangles formed by dividing a regular hexagon $ABCDEF$ with an area of $12$ cm$^2$, a rectangle $PQRS$ is assembled. What is the area of the rectangle $PQRS$?
[ "16" ]
[ "Using the four triangles formed by dividing a regular hexagon $ABCDEF$ with an area of $12$ cm$^2$, a rectangle $PQRS$ is assembled. What is the area of the rectangle $PQRS$?" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-3b1151c8a17d863acfdce36c29681e9a1a01ebd06c1c487bd32cbc6318f6e13c
Using the geometric interpretation indicated above, let us ascertain the validity of the following statements: Find whether the following sequences have limits: (a) $x_n=1+\frac{(-1)^n}{n}$, (b) $x_n=\left[1+\frac{(-1)^n}{n}\right]$.
[ "(a) $\\lim\\limits_{n\\to \\infty }x_n=1$; (b) the sequence has no limit" ]
[ "Using the geometric interpretation indicated above, let us ascertain the validity of the following statements: Find whether the following sequences have limits: (a) $x_n=1+\\frac{(-1)^n}{n}$, (b) $x_n=\\left[1+\\frac{(-1)^n}{n}\\right]$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-3f3fc37da568666798de6438e4fb1eb7b976c1d7ae5b36bbd3fd6c05635bb346
Using the given axioms and properties, find the expression for \(-(xy)\) in terms of \(x\) and \(y\) without using \(-x = (-1)x\). If \(x = 3\) and \(y = 4\), calculate the value of \(-(xy)\) using your derived expression.
[ "-12" ]
[ "Using the given axioms and properties, find the expression for \\(-(xy)\\) in terms of \\(x\\) and \\(y\\) without using \\(-x = (-1)x\\). If \\(x = 3\\) and \\(y = 4\\), calculate the value of \\(-(xy)\\) using your derived expression." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-d5dfbece2ad0396fabd22a23e3d2c734b1e8ac0f8314d9376aaff808b6e05294
Using the given data, find a quadratic function and a cubic function which model the situation. Explain the process used. Data: Gude numbers (from tip): 1, 2, 3, 4, 5, 6, 7, 8 Distance from tip (cm): 10, 23, 38, 55, 74, 96, 120, 149
[ "y = -0.00291x^3 + 1.299x^2 + 8.144x + 1.325" ]
[ "Using the given data, find a quadratic function and a cubic function which model the situation. Explain the process used.\n\nData:\nGude numbers (from tip): 1, 2, 3, 4, 5, 6, 7, 8\nDistance from tip (cm): 10, 23, 38, 55, 74, 96, 120, 149" ]
[ "aops_c4_high_school_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-0664d3f0950cb7b9325b0e5bef7e02caa0c1dd636f2dc10a15801ade4d95f398
Using the given identity, calculate the coefficient of $x^{10}$ in the expansion of \[ \prod_{n \geq 1}\left(1-x^{n}\right)^{6}. \]
[ "18" ]
[ "Using the given identity, calculate the coefficient of $x^{10}$ in the expansion of \n\\[\n\\prod_{n \\geq 1}\\left(1-x^{n}\\right)^{6}.\n\\]" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 2, "genselect": 8 }
10
0
0
omr-ws-a41c4988a8fe6d3c4321364edc7857437a8ddb209a1e3a9369ef4846aaa9e2e3
Using the given patterns in base 10: \[ 9 - 1 = 2^3, \] \[ 9^2 - 1 = 2^4 \cdot 5, \] \[ 9^4 - 1 = 2^3 \cdot 5 \cdot 41, \] determine the length of the period in the base 9 expansion of each of the fractions \( \frac{1}{5} \), \( \frac{1}{2^5} \), and \( \frac{1}{5 \cdot 14} \).
[ "6" ]
[ "Using the given patterns in base 10:\n\\[ 9 - 1 = 2^3, \\]\n\\[ 9^2 - 1 = 2^4 \\cdot 5, \\]\n\\[ 9^4 - 1 = 2^3 \\cdot 5 \\cdot 41, \\]\ndetermine the length of the period in the base 9 expansion of each of the fractions \\( \\frac{1}{5} \\), \\( \\frac{1}{2^5} \\), and \\( \\frac{1}{5 \\cdot 14} \\)." ]
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-d760a3226206d9ae54d66e568990004dd8b274fe4a17c9b66ab7fb6bab3f0761
Using the given values of \( f(x) \), compute \( f'(2.5) \) using the Richardson extrapolation technique. x f(x) 2.10 0.7419 2.30 0.8329 2.40 0.8754 2.50 0.8960 2.60 0.9162
[ "0.204" ]
[ "Using the given values of \\( f(x) \\), compute \\( f'(2.5) \\) using the Richardson extrapolation technique.\n\n x f(x)\n 2.10 0.7419\n 2.30 0.8329\n 2.40 0.8754\n 2.50 0.8960\n 2.60 0.9162" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-cf1b2289475df85751198bf2901000c2b7e105c9d5760347e87695e1b3793ee2
Using the height function \( f(t) = 900 - 16t^2 \), evaluate the average speed of the ball between the times \( t = 7.5 - \left(\frac{1}{2}\right)^n \) and \( t = 7.5 - \left(\frac{1}{2}\right)^{n+1} \) and determine if it is possible to evaluate the limit of these average speeds using a geometric series.
[ "240" ]
[ "Using the height function \\( f(t) = 900 - 16t^2 \\), evaluate the average speed of the ball between the times \\( t = 7.5 - \\left(\\frac{1}{2}\\right)^n \\) and \\( t = 7.5 - \\left(\\frac{1}{2}\\right)^{n+1} \\) and determine if it is possible to evaluate the limit of these average speeds using a geometric seri...
[ "aops_c7_college_math" ]
[ "cot", "tir" ]
{ "cot": 1, "tir": 7 }
8
0
0
omr-ws-c0ac8d155991c8b328771fa5240062ce5b8c735d3880cc733c092854370abbed
Using the hook-length formula, calculate the number of ways to fill a $3 \times 3$ grid with the numbers $1$ through $9$ such that each row and column is increasing. The hook-length formula is given by $\frac{n!}{ \prod_{(i,j) \in Y} \text{hook}\,(i,j)}$, where $n = 9$ and $\text{hook}\,(i,j)$ is the number of cells in...
[ "\\(5 \\cdot 4 \\cdot 3 \\cdot 4 \\cdot 3 \\cdot 2 \\cdot 3 \\cdot 2 \\cdot 1\\)" ]
[ "Using the hook-length formula, calculate the number of ways to fill a $3 \\times 3$ grid with the numbers $1$ through $9$ such that each row and column is increasing. The hook-length formula is given by $\\frac{n!}{ \\prod_{(i,j) \\in Y} \\text{hook}\\,(i,j)}$, where $n = 9$ and $\\text{hook}\\,(i,j)$ is the numbe...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 5 }
5
0
0
omr-ws-a89c9409f8b656156ba7b0b4baa9d840be0515e166304aff8e2cb37b4a2f19c2
Using the identity $$\int_{0}^{\infty}t^{z-1}\sin{t}~dt = \Gamma(z)\sin(\frac{1}{2}\pi z),$$ calculate the value of the integral $$\int_{0}^{\infty}\sin{t^3}~dt.$$ Express your answer in terms of $\Gamma$ and $\pi$.
[ "\\frac{1}{3} \\Gamma\\left(\\frac{1}{3}\\right) \\sin\\left(\\frac{\\pi}{6}\\right)" ]
[ "Using the identity $$\\int_{0}^{\\infty}t^{z-1}\\sin{t}~dt = \\Gamma(z)\\sin(\\frac{1}{2}\\pi z),$$ calculate the value of the integral $$\\int_{0}^{\\infty}\\sin{t^3}~dt.$$ Express your answer in terms of $\\Gamma$ and $\\pi$." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-a115158b76ab8e4a9fa1eaf52e307a9679d5513f98a997f2676d0df0c635db8e
Using the identity $(1-x)^{-\frac{1}{2}}(1-x)^{-\frac{1}{2}}=(1-x)^{-1}$, find the coefficient of $x^{10}$ in the expansion of $(1-x)^{-1}$.
[ "1" ]
[ "Using the identity $(1-x)^{-\\frac{1}{2}}(1-x)^{-\\frac{1}{2}}=(1-x)^{-1}$, find the coefficient of $x^{10}$ in the expansion of $(1-x)^{-1}$." ]
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-e1530a77660313b05cc091b49c073f990ce03b719ac0f5566b81c576cedc29ac
Using the identity $4\sin \theta \sin \left(\frac{\pi}{3} - \theta\right) \sin \left(\frac{\pi}{3} + \theta\right) = \sin 3\theta$, derive a similar identity for $\cos 3\theta$. Then, using this identity, find the value of $\cot \theta \cot \left(\frac{\pi}{3} - \theta\right) \cot \left(\frac{\pi}{3} + \theta\right)$ w...
[ "\\dfrac{\\sqrt{3}}{3}" ]
[ "Using the identity $4\\sin \\theta \\sin \\left(\\frac{\\pi}{3} - \\theta\\right) \\sin \\left(\\frac{\\pi}{3} + \\theta\\right) = \\sin 3\\theta$, derive a similar identity for $\\cos 3\\theta$. Then, using this identity, find the value of $\\cot \\theta \\cot \\left(\\frac{\\pi}{3} - \\theta\\right) \\cot \\left...
[ "aops_c6_high_school_olympiads" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-96b67600095fa71e0e60eb3fdfd986a9a198cf5f3dc35935a6491181107b1635
Using the identity $\lg 11 = 1.0413\ldots$, find the least positive integer $n$ such that no $n$-digit number is divisible by $11$.
[ "1" ]
[ "Using the identity $\\lg 11 = 1.0413\\ldots$, find the least positive integer $n$ such that no $n$-digit number is divisible by $11$." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 15, "genselect": 4 }
19
0
0
omr-ws-ab1b3249be09db3652e39a0ecbfe8e46799ed3ad4b2592aca1717a90a32ffeb7
Using the identity \[ \frac{1}{1+x^{2}}=\int_{0}^{+\infty}\exp(-y(1+x^{2}))dy, \] find the value of the integral \[ \int_{0}^{+\infty}\frac{\cos(ax)}{1+x^{2}}dx. \]
[ "\\dfrac{\\pi}{2} e^{-|a|}" ]
[ "Using the identity\n\\[\n\\frac{1}{1+x^{2}}=\\int_{0}^{+\\infty}\\exp(-y(1+x^{2}))dy,\n\\]\nfind the value of the integral\n\\[\n\\int_{0}^{+\\infty}\\frac{\\cos(ax)}{1+x^{2}}dx.\n\\]" ]
[ "aops_c7_college_math" ]
[ "cot", "genselect" ]
{ "cot": 11, "genselect": 8 }
19
0
0
omr-ws-40664237a83b9f6c013dbc5f8d247717a3aaf250435eebae35d82f05c9ad4cc9
Using the inclusion/exclusion principle, find a formula for the cardinality of $ |\bigcup_{i\neq j}^{n}(A_i\bigcap A_j)| $.
[ " \\sum_{k=2}^n (-1)^k (k - 1) \\sum_{1 \\leq i_1 < i_2 < \\cdots < i_k \\leq n} |A_{i_1} \\cap A_{i_2} \\cap \\cdots \\cap A_{i_k}| " ]
[ "Using the inclusion/exclusion principle, find a formula for the cardinality of $ |\\bigcup_{i\\neq j}^{n}(A_i\\bigcap A_j)| $." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-7536911e76a6932a80587a142245cf1b8cbaf795d78f35d11c4c42a6eba2ea82
Using the inequality $ \frac{n \sqrt[n]{e}}{e} < \sqrt[n]{n!} < \frac{n \sqrt[n]{ne}}{e} $, find the value of $L$ where $L = \lim_{n \rightarrow + \infty} \frac{\sqrt[n]{n!}}{n}$.
[ "\\dfrac{1}{e}" ]
[ "Using the inequality $ \\frac{n \\sqrt[n]{e}}{e} < \\sqrt[n]{n!} < \\frac{n \\sqrt[n]{ne}}{e} $, find the value of $L$ where $L = \\lim_{n \\rightarrow + \\infty} \\frac{\\sqrt[n]{n!}}{n}$." ]
[ "aops_c7_college_math" ]
[ "additional_problems" ]
{ "additional_problems": 1 }
1
0
0
omr-ws-66cc2050d9f831b01ec2b07f31b14d6b7d67859d7a20aa3467a937dcb2dc9e44
Using the inequality \(\pi(2n) - \pi(n) < \frac{n \log(4)}{\log(n)}\) (where \(n > 1\)), find the smallest integer \(k\) such that \(\pi(2n) \leq \frac{n \log(k)}{\log(n)}\) for all \(n > 1\).
[ "14" ]
[ "Using the inequality \\(\\pi(2n) - \\pi(n) < \\frac{n \\log(4)}{\\log(n)}\\) (where \\(n > 1\\)), find the smallest integer \\(k\\) such that \\(\\pi(2n) \\leq \\frac{n \\log(k)}{\\log(n)}\\) for all \\(n > 1\\)." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot", "genselect" ]
{ "cot": 2, "genselect": 4 }
6
0
0
omr-ws-549135cf6fdeab2c05fe99d1d489d80413407a61b820cc319a7c9849a52b191f
Using the information $10^3 = 1000$, $10^4 = 10000$, $2^{10} = 1024$, $2^{11} = 2048$, $2^{12} = 4096$, and $2^{13} = 8192$, find the largest $a$ and the smallest $b$ such that $a < \log_{10}2 < b$.
[ "\\( a = \\frac{3}{10} \\) and \\( b = \\frac{4}{13} \\)" ]
[ "Using the information $10^3 = 1000$, $10^4 = 10000$, $2^{10} = 1024$, $2^{11} = 2048$, $2^{12} = 4096$, and $2^{13} = 8192$, find the largest $a$ and the smallest $b$ such that $a < \\log_{10}2 < b$." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 4, "tir": 18 }
22
0
0
omr-ws-93916cb20fe14540843e9f6238537d7e2d6ba2e2ecc1472e7c18de04daca57ac
Using the information $10^3 = 1000$, $10^4 = 10000$, $2^{10} = 1024$, $2^{11} = 2048$, $2^{12} = 4096$, and $2^{13} = 8192$, find the largest $a$ and the smallest $b$ such that one can prove $a < \log_{10}2 < b$.
[ "\\( a = \\frac{3}{10} \\) and \\( b = \\frac{4}{13} \\)" ]
[ "Using the information $10^3 = 1000$, $10^4 = 10000$, $2^{10} = 1024$, $2^{11} = 2048$, $2^{12} = 4096$, and $2^{13} = 8192$, find the largest $a$ and the smallest $b$ such that one can prove $a < \\log_{10}2 < b$." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 5, "tir": 13 }
18
0
0
omr-ws-e6d83fc7191fde1eaea606e770246def2748bb03ba2f2937a7aa1c860b30c80c
Using the information provided, calculate Diane's adjusted gross income: - Gross income: \$38,500 (wages) + \$120 (interest) + \$5,850 (gambling earnings) - Deduction for tax-deferred retirement account: \$2,400
[ "42070" ]
[ "Using the information provided, calculate Diane's adjusted gross income:\n- Gross income: \\$38,500 (wages) + \\$120 (interest) + \\$5,850 (gambling earnings)\n- Deduction for tax-deferred retirement account: \\$2,400" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 16 }
16
0
0
omr-ws-ad313d9a755d46ee5c98070afb11487ca4dec9d6f24f38726d6df7e6a3f3c48b
Using the information provided, calculate Diane's taxable income: - Adjusted gross income (from Problem 2) - Personal exemption: \$3,950 - Standard deduction: \$6,200 - Deductions: \$2,250 (state taxes) + \$4,500 (mortgage interest) + \$2,300 (property taxes)
[ "37000" ]
[ "Using the information provided, calculate Diane's taxable income:\n- Adjusted gross income (from Problem 2)\n- Personal exemption: \\$3,950\n- Standard deduction: \\$6,200\n- Deductions: \\$2,250 (state taxes) + \\$4,500 (mortgage interest) + \\$2,300 (property taxes)" ]
[ "aops_c7_college_math" ]
[ "cot" ]
{ "cot": 10 }
10
0
0
omr-ws-3452676861440be9d99f988146de380ff6d755c640bf3033d5f9ba19b0161a72
Using the information that 4652 tosses of a coin yield 1868 heads, find an approximate value of the probability that the number of heads will be more than 960 but less than or equal to 1080 in 2500 tosses of the same coin.
[ "0.9589" ]
[ "Using the information that 4652 tosses of a coin yield 1868 heads, find an approximate value of the probability that the number of heads will be more than 960 but less than or equal to 1080 in 2500 tosses of the same coin." ]
[ "aops_c7_college_math" ]
[ "cot", "genselect", "tir" ]
{ "cot": 5, "genselect": 4, "tir": 20 }
29
0
0
omr-ws-940e72e82a10712747088406f744ed03800e5f4733f9dc3a1a585c716a717c4f
Using the information that \(10^3 = 1000\), \(10^4 = 10000\), \(2^{10} = 1024\), \(2^{11} = 2048\), \(2^{12} = 4096\), and \(2^{13} = 8192\), find the largest \(a\) and smallest \(b\) such that \(a < \log_{10}(2) < b\).
[ "\\( a = \\frac{3}{10}, b = \\frac{4}{13} \\)" ]
[ "Using the information that \\(10^3 = 1000\\), \\(10^4 = 10000\\), \\(2^{10} = 1024\\), \\(2^{11} = 2048\\), \\(2^{12} = 4096\\), and \\(2^{13} = 8192\\), find the largest \\(a\\) and smallest \\(b\\) such that \\(a < \\log_{10}(2) < b\\)." ]
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 3, "tir": 13 }
16
0
0
omr-ws-bd1380ec3023523af95aed085b1b97f27c13a18859d088bc15e4a0d72ee2c421
Using the integer \( K \) found in Problem 1, determine a method to factor the number 3,142,039 into its prime components.
[ "3103" ]
[ "Using the integer \\( K \\) found in Problem 1, determine a method to factor the number 3,142,039 into its prime components." ]
[ "aops_c6_high_school_olympiads" ]
[ "cot" ]
{ "cot": 2 }
2
0
0
omr-ws-6d4896a6d57ca879dcd2e9c0fc7c6499fdc6e9b19e937dc5b07ad2a7c341fd1b
Using the least cost method, find a starting basic feasible solution for the transportation problem given the following cost matrix and supply/demand constraints: \[ \begin{array}{c|cccc|c} & 1 & 2 & 3 & 4 & \text{Supply} \\ \hline 1 & 1 & 2 & 3 & 2 & 150 \\ 2 & 2 & 4 & 1 & 2 & 200 \\ 3 & 1 & 3 & 5 & 3 & 250 \\ \text{d...
[ "1650" ]
[ "Using the least cost method, find a starting basic feasible solution for the transportation problem given the following cost matrix and supply/demand constraints:\n\n\\[\n\\begin{array}{c|cccc|c}\n & 1 & 2 & 3 & 4 & \\text{Supply} \\\\\n\\hline\n1 & 1 & 2 & 3 & 2 & 150 \\\\\n2 & 2 & 4 & 1 & 2 & 200 \\\\\n3 & 1 & 3...
[ "aops_c4_high_school_math" ]
[ "cot" ]
{ "cot": 15 }
15
0
0
omr-ws-5552bc3262171fb6ff1978ba16aa668b04eabbaea78c3b9b25a6fa610efdb1cf
Using the left end of the arch as the origin, find an equation for the height \( y \) (in feet) above the water of a point on the arch as a function of the point's position \( x \) (in feet) in relation to the left endpoint, given that the arch is 24 ft wide at the water level and the peak of the arch is 40 ft above th...
[ "\\( y = -\\dfrac{5}{18}x^2 + \\dfrac{20}{3}x \\)" ]
[ "Using the left end of the arch as the origin, find an equation for the height \\( y \\) (in feet) above the water of a point on the arch as a function of the point's position \\( x \\) (in feet) in relation to the left endpoint, given that the arch is 24 ft wide at the water level and the peak of the arch is 40 ft...
[ "aops_c4_high_school_math" ]
[ "cot", "tir" ]
{ "cot": 15, "tir": 19 }
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