User contributions
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- 20:22, 27 June 2014 (diff | hist) . . (+529) . . N 1994 AHSME Problems/Problem 2 (Created page with "==Problem== A large rectangle is partitioned into four rectangles by two segments parallel to its sides. The areas of three of the resulting rectangles are shown. What is the are...")
- 20:22, 27 June 2014 (diff | hist) . . (+225) . . N 1994 AHSME Problems/Problem 1 (Created page with "==Problem== <math>4^4 \cdot 9^4 \cdot 4^9 \cdot 9^9=</math> <math> \textbf{(A)}\ 13^{13} \qquad\textbf{(B)}\ 13^{36} \qquad\textbf{(C)}\ 36^{13} \qquad\textbf{(D)}\ 36^{36} \qqu...")
- 19:15, 27 June 2014 (diff | hist) . . (+2,016) . . 1994 AHSME Problems
- 19:08, 30 April 2014 (diff | hist) . . (+281) . . 2013 USAMO Problems (Wrong Text Sorry) (current)
- 19:07, 30 April 2014 (diff | hist) . . (+2,930) . . N 2013 USAMO Problems (Created page with "==Day 1== ===Problem 1=== Are there integers <math>a</math> and <math>b</math> such that <math>a^5b+3</math> and <math>ab^5+3</math> are both perfect cubes of integers? [[2013 ...")
- 19:06, 30 April 2014 (diff | hist) . . (-2,735) . . 2013 USAMO
- 19:05, 30 April 2014 (diff | hist) . . (+76) . . 2013 USAJMO (current)
- 19:05, 30 April 2014 (diff | hist) . . (+2,706) . . 2013 USAMO Problems/Problem 4 (Merge)
- 19:03, 30 April 2014 (diff | hist) . . (0) . . 2013 USAJMO
- 19:02, 30 April 2014 (diff | hist) . . (-26) . . 2013 USAJMO Problems/Problem 6 (→Solution) (current)
- 19:00, 30 April 2014 (diff | hist) . . (+2,843) . . 2013 USAJMO Problems
- 19:00, 30 April 2014 (diff | hist) . . (-2,462) . . 2013 USAJMO
- 16:58, 30 April 2014 (diff | hist) . . (-1) . . 2014 USAJMO Problems (→Problem 3)
- 16:57, 30 April 2014 (diff | hist) . . (-1) . . 2014 USAJMO Problems (→Problem 5)
- 16:57, 30 April 2014 (diff | hist) . . (+30) . . 2014 USAJMO (current)
- 16:46, 30 April 2014 (diff | hist) . . (+499) . . N 2014 USAMO Problems/Problem 5 (Created page with "==Problem== Let <math>ABC</math> be a triangle with orthocenter <math>H</math> and let <math>P</math> be the second intersection of the circumcircle of triangle <math>AHC</math> ...")
- 16:46, 30 April 2014 (diff | hist) . . (+476) . . 2014 USAMO Problems (→Problem 5)
- 16:45, 30 April 2014 (diff | hist) . . (+294) . . Nm 2014 USAMO Problems/Problem 6 (Created page with "==Problem== Prove that there is a constant <math>c>0</math> with the following property: If <math>a, b, n</math> are positive integers such that <math>\gcd(a+i, b+j)>1</math> for...")
- 16:45, 30 April 2014 (diff | hist) . . (+270) . . 2014 USAMO Problems (→Problem 6)
- 16:44, 30 April 2014 (diff | hist) . . (+761) . . N 2014 USAMO Problems/Problem 4 (Created page with "==Problem== Let <math>k</math> be a positive integer. Two players <math>A</math> and <math>B</math> play a game on an infinite grid of regular hexagons. Initially all the grid ce...")
- 16:44, 30 April 2014 (diff | hist) . . (+737) . . 2014 USAMO Problems (→Day 2)
- 16:43, 30 April 2014 (diff | hist) . . (+792) . . N 2014 USAJMO Problems/Problem 6 (Created page with "==Problem== Let <math>ABC</math> be a triangle with incenter <math>I</math>, incircle <math>\gamma</math> and circumcircle <math>\Gamma</math>. Let <math>M,N,P</math> be the mid...")
- 16:43, 30 April 2014 (diff | hist) . . (+768) . . 2014 USAJMO Problems (→Problem 6)
- 16:43, 30 April 2014 (diff | hist) . . (+761) . . N 2014 USAJMO Problems/Problem 5 (Created page with "==Problem== Let <math>k</math> be a positive integer. Two players <math>A</math> and <math>B</math> play a game on an infinite grid of regular hexagons. Initially all the grid ce...")
- 16:42, 30 April 2014 (diff | hist) . . (+343) . . N 2014 USAJMO Problems/Problem 4 (Created page with "==Problem== Let <math>b\geq 2</math> be an integer, and let <math>s_b(n)</math> denote the sum of the digits of <math>n</math> when it is written in base <math>b</math>. Show th...")
- 16:42, 30 April 2014 (diff | hist) . . (+321) . . 2014 USAJMO Problems (→Problem 4)
- 16:42, 30 April 2014 (diff | hist) . . (+738) . . 2014 USAJMO Problems (→Problem 5)
- 17:46, 29 April 2014 (diff | hist) . . (+96) . . 2014 USAJMO
- 17:43, 29 April 2014 (diff | hist) . . (+412) . . 2014 USAMO Problems (→Problem 3)
- 17:42, 29 April 2014 (diff | hist) . . (+435) . . N 2014 USAMO Problems/Problem 3 (Created page with "==Problem== Prove that there exists an infinite set of points <cmath>\ldots,\,\,\,\,P_{-3},\,\,\,\,P_{-2},\,\,\,\,P_{-1},\,\,\,\,P_0,\,\,\,\,P_1,\,\,\,\,P_2,\,\,\,\,P_3,\,\,\,\,\...")
- 17:38, 29 April 2014 (diff | hist) . . (+300) . . 2014 USAMO Problems (→Day 1)
- 17:38, 29 April 2014 (diff | hist) . . (+323) . . N 2014 USAMO Problems/Problem 1 (Created page with "==Problem== Let <math>a,b,c,d</math> be real numbers such that <math>b-d \ge 5</math> and all zeros <math>x_1, x_2, x_3,</math> and <math>x_4</math> of the polynomial <math>P(x)=...")
- 17:37, 29 April 2014 (diff | hist) . . (+17) . . 2014 USAJMO Problems/Problem 1 (→Solution)
- 17:35, 29 April 2014 (diff | hist) . . (-20) . . 2014 USAJMO Problems/Problem 1
- 17:13, 29 April 2014 (diff | hist) . . (+667) . . 2014 USAJMO Problems (→Problem 2)
- 17:12, 29 April 2014 (diff | hist) . . (+689) . . N 2014 USAJMO Problems/Problem 2 (Created page with "==Problem== Let <math>\triangle{ABC}</math> be a non-equilateral, acute triangle with <math>\angle A=60\textdegrees</math>, and let <math>O</math> and <math>H</math> denote the c...")
- 17:12, 29 April 2014 (diff | hist) . . (+292) . . N 2014 USAMO Problems/Problem 2 (Created page with "==Problem== Let <math>\mathbb{Z}</math> be the set of integers. Find all functions <math>f : \mathbb{Z} \rightarrow \mathbb{Z}</math> such that <cmath>xf(2f(y)-x)+y^2f(2x-f(y))=\...")
- 17:12, 29 April 2014 (diff | hist) . . (+270) . . 2014 USAMO Problems (→Problem 2)
- 17:11, 29 April 2014 (diff | hist) . . (+1) . . 2014 USAJMO Problems (→Problem 3)
- 17:11, 29 April 2014 (diff | hist) . . (+268) . . 2014 USAJMO Problems (→Problem 3)
- 17:11, 29 April 2014 (diff | hist) . . (+293) . . N 2014 USAJMO Problems/Problem 3 (Created page with "==Problem== Let <math>\mathbb{Z}</math> be the set of integers. Find all functions <math>f : \mathbb{Z} \rightarrow \mathbb{Z}</math> such that <cmath>xf(2f(y)-x)+y^2f(2x-f(y))=\...")
- 17:10, 29 April 2014 (diff | hist) . . (+274) . . N 2014 USAJMO Problems/Problem 1 (Created page with "==Problem== Let <math>a</math>, <math>b</math>, <math>c</math> be real numbers greater than or equal to <math>1</math>. Prove that <cmath>\min{\left (\frac{10a^2-5a+1}{b^2-5b+1},...")
- 17:09, 29 April 2014 (diff | hist) . . (+251) . . 2014 USAJMO Problems (→Problem 1)
- 15:22, 29 April 2014 (diff | hist) . . (+253) . . 2014 USAMO Problems
- 15:21, 29 April 2014 (diff | hist) . . (+122) . . N 2014 USAMO Problems (Created page with "==Day 1== ===Problem 1=== ===Problem 2=== ===Problem 3=== ==Day 2== ===Problem 4=== ===Problem 5=== ===Problem 6===")
- 15:20, 29 April 2014 (diff | hist) . . (+620) . . N 2014 USAMO (Created page with "The '''Fourty-third USAMO''' was held April 29th and April 30th, 2014. The first link contains the full set of test problems. The rest contain each individual problem and its...")
- 15:19, 29 April 2014 (diff | hist) . . (+15) . . USAMO Problems and Solutions
- 15:19, 29 April 2014 (diff | hist) . . (+76) . . 2014 USAJMO
- 15:18, 29 April 2014 (diff | hist) . . (-60) . . 2014 USAJMO
- 15:17, 29 April 2014 (diff | hist) . . (+382) . . N 2014 USAJMO Problems (Created page with "==Day 1== ===Problem 1=== Solution ===Problem 2=== Solution ===Problem 3=== [[2014 USAJMO Problems/Problem ...")
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