# User contributions

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)

- 13:04, 21 February 2014 (diff | hist) . . (+1) . . m 2014 AMC 10B Problems/Problem 21 (→Solution)
- 11:31, 22 February 2013 (diff | hist) . . (0) . . 2013 AMC 10B Problems/Problem 24 (→Solution)
- 11:25, 22 February 2013 (diff | hist) . . (+5) . . m 2013 AMC 10B Problems/Problem 2
- 20:30, 2 November 2012 (diff | hist) . . (+24) . . 2009 AMC 10A Answer Key
- 20:30, 2 November 2012 (diff | hist) . . (+140) . . N 2009 AMC 10A Answer Key (Created page with "1. E 2. A 3. C 4. A 5. E 6. A 7. C 8. B 9. B 10. B 11. D 12. C 13. E 14. A 15. E 16. D 17. C 18. D 19. B 20. D 21. C 22. D 23. E 24. C 25. B")
- 20:29, 2 November 2012 (diff | hist) . . (+28) . . 2009 AMC 10A
- 20:27, 2 November 2012 (diff | hist) . . (+1) . . m 2009 AMC 10A Problems/Problem 18 (→Solution 1)
- 20:24, 2 November 2012 (diff | hist) . . (+7) . . m 2009 AMC 12A Problems/Problem 5 (→Solution)
- 20:24, 2 November 2012 (diff | hist) . . (+14) . . m 2009 AMC 12A Problems/Problem 5 (→Solution)
- 20:24, 2 November 2012 (diff | hist) . . (+20) . . m 2009 AMC 10A Problems/Problem 10 (→Solution)
- 20:23, 2 November 2012 (diff | hist) . . (+13) . . m 2009 AMC 10A Problems/Problem 9
- 22:52, 1 November 2012 (diff | hist) . . (+2) . . m 2011 AMC 10A Problems/Problem 24 (→Solution)
- 22:52, 1 November 2012 (diff | hist) . . (+7) . . m 2011 AMC 10A Problems/Problem 24 (→Solution)
- 22:23, 28 October 2012 (diff | hist) . . (+2) . . m Right triangle (→Special right triangles)
- 22:22, 28 October 2012 (diff | hist) . . (+80) . . m Right triangle (→Special right triangles)
- 20:29, 19 August 2012 (diff | hist) . . (+29) . . m 1997 AIME Problems/Problem 11 (→Solution 3)
- 23:41, 7 July 2012 (diff | hist) . . (0) . . m 2012 AIME II Problems/Problem 9 (→The Second Term)
- 19:36, 30 May 2012 (diff | hist) . . (+1) . . Vector (current)
- 18:37, 11 May 2012 (diff | hist) . . (+53) . . MATHCOUNTS
- 18:36, 11 May 2012 (diff | hist) . . (+22) . . MATHCOUNTS (→Past State Team Winners)
- 18:36, 11 May 2012 (diff | hist) . . (+27) . . MATHCOUNTS (→Past Winners)
- 20:26, 3 April 2012
(diff | hist) . .
**(+2,271)** . . 2012 AIME II Problems/Problem 9 (→Solution) - 16:13, 31 March 2012
(diff | hist) . .
**(+637)** . . N 2012 AIME II Problems/Problem 15 (Created page with "== Problem 15 == Triangle <math>ABC</math> is inscribed in circle <math>\omega</math> with <math>AB=5</math>, <math>BC=7</math>, and <math>AC=3</math>. The bisector of angle <mat...") - 16:12, 31 March 2012 (diff | hist) . . (+430) . . N 2012 AIME II Problems/Problem 14 (Created page with "== Problem 14 == In a group of nine people each person shakes hands with exactly two of the other people from the group. Let <math>N</math> be the number of ways this handshaking...")
- 16:11, 31 March 2012 (diff | hist) . . (+351) . . N 2012 AIME II Problems/Problem 13 (Created page with "== Problem 13 == Equilateral <math>\triangle ABC</math> has side length <math>\sqrt{111}</math>. There are four distinct triangles <math>AD_1E_1</math>, <math>AD_1E_2</math>, <ma...")
- 16:11, 31 March 2012
(diff | hist) . .
**(+532)** . . N 2012 AIME II Problems/Problem 12 (Created page with "== Problem 12 == For a positive integer <math>p</math>, define the positive integer <math>n</math> to be <math>p</math>''-safe'' if <math>n</math> differs in absolute value by mo...") - 16:10, 31 March 2012 (diff | hist) . . (+371) . . N 2012 AIME II Problems/Problem 11 (Created page with "== Problem 11 == Let <math>f_1(x) = \frac23 - \frac3{3x+1}</math>, and for <math>n \ge 2</math>, define <math>f_n(x) = f_1(f_{n-1}(x))</math>. The value of <math>x</math> that sa...")
- 16:09, 31 March 2012 (diff | hist) . . (+302) . . N 2012 AIME II Problems/Problem 10 (Created page with "== Problem 10 == Find the number of positive integers <math>n</math> less than <math>1000</math> for which there exists a positive real number <math>x</math> such that <math>n=x\...")
- 16:09, 31 March 2012 (diff | hist) . . (+399) . . N 2012 AIME II Problems/Problem 9 (Created page with "== Problem 9 == Let <math>x</math> and <math>y</math> be real numbers such that <math>\frac{\sin x}{\sin y} = 3</math> and <math>\frac{\cos x}{\cos y} = \frac12</math>. The value...")
- 16:08, 31 March 2012 (diff | hist) . . (+222) . . N 2012 AIME II Problems/Problem 8 (Created page with "== Problem 8 == The complex numbers <math>z</math> and <math>w</math> satisfy the system <cmath> z + \frac{20i}w = 5+i \\ \\ w+\frac{12i}z = -4+10i </cmath> Find the smallest pos...")
- 16:07, 31 March 2012 (diff | hist) . . (+274) . . N 2012 AIME II Problems/Problem 7 (Created page with "== Problem 7 == Let <math>S</math> be the increasing sequence of positive integers whose binary representation has exactly <math>8</math> ones. Let <math>N</math> be the 1000th n...")
- 16:07, 31 March 2012 (diff | hist) . . (+127) . . 2012 AIME II Problems/Problem 6
- 16:05, 31 March 2012
(diff | hist) . .
**(+966)** . . N 2012 AIME II Problems/Problem 5 (Created page with "== Problem 5 == In the accompanying figure, the outer square <math>S</math> has side length <math>40</math>. A second square <math>S'</math> of side length <math>15</math> is con...") - 16:04, 31 March 2012
(diff | hist) . .
**(+1,009)** . . N 2012 AIME II Problems/Problem 4 (Created page with "== Problem 4 == Ana, Bob, and Cao bike at constant rates of <math>8.6</math> meters per second, <math>6.2</math> meters per second, and <math>5</math> meters per second, respecti...") - 16:03, 31 March 2012 (diff | hist) . . (+453) . . N 2012 AIME II Problems/Problem 3 (Created page with "== Problem 3 == At a certain university, the division of mathematical sciences consists of the departments of mathematics, statistics, and computer science. There are two male an...")
- 16:02, 31 March 2012 (diff | hist) . . (+245) . . N 2012 AIME II Problems/Problem 2 (Created page with "== Problem 2 == Two geometric sequences <math>a_1, a_2, a_3, \ldots</math> and <math>b_1, b_2, b_3, \ldots</math> have the same common ratio, with <math>a_1 = 27</math>, <math>b_...")
- 16:00, 31 March 2012 (diff | hist) . . (+145) . . N 2012 AIME II Problems/Problem 1 (Created page with "== Problem 1 == Find the number of ordered pairs of positive integer solutions <math>(m, n)</math> to the equation <math>20m + 12n = 2012</math>.")
- 18:46, 30 March 2012 (diff | hist) . . (+14) . . m 2012 AIME II Answer Key
- 20:29, 25 March 2012 (diff | hist) . . (+13) . . m 2009 AIME I Problems/Problem 11 (→Solution 2)
- 16:23, 25 March 2012 (diff | hist) . . (+12) . . m 2009 AIME I Problems/Problem 11 (→Solution 2)
- 16:07, 25 March 2012
(diff | hist) . .
**(+2,729)** . . 2009 AIME I Problems/Problem 11 (→Solution) - 23:51, 15 March 2012 (diff | hist) . . (+6) . . m Rational Root Theorem (→Proof)
- 23:51, 15 March 2012 (diff | hist) . . (+37) . . m Rational Root Theorem (→Proof)
- 23:00, 11 March 2012 (diff | hist) . . (+46) . . 2012 AMC 12B Problems/Problem 12 (→Solution 1)
- 14:56, 11 March 2012 (diff | hist) . . (-172) . . User:Williamhu888 (Blanked the page) (current)
- 00:03, 9 March 2012 (diff | hist) . . (+21) . . m 2006 AIME I Problems/Problem 8 (→Solution)
- 01:27, 3 March 2012 (diff | hist) . . (0) . . m 2005 AIME II Problems/Problem 5 (→Solution)
- 15:02, 25 February 2012 (diff | hist) . . (+8) . . m 2004 AIME II Problems/Problem 1 (→Solution)
- 15:31, 19 February 2012 (diff | hist) . . (+8) . . m 2003 AIME II Problems/Problem 7
- 19:28, 18 February 2012 (diff | hist) . . (+113) . . 2003 AIME I Problems/Problem 3

(newest | oldest) View (newer 50 | older 50) (20 | 50 | 100 | 250 | 500)