# User contributions

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- 21:59, 7 November 2016
(diff | hist) . .
**(+4,738)** . . 1983 AIME Problems/Problem 15 - 20:34, 7 November 2016 (diff | hist) . . (+44) . . N File:Aime1983p15s2.png (For the solution 2 of AIME 1983, problem 15.) (current)
- 22:46, 30 December 2015 (diff | hist) . . (+16) . . 2010 AMC 10B Problems/Problem 25 (→Critique of the (Critique of the Critique))
- 22:45, 30 December 2015
(diff | hist) . .
**(+1,238)** . . 2010 AMC 10B Problems/Problem 25 - 11:56, 18 April 2014
(diff | hist) . .
**(+1,792)** . . 2013 USAMO Problems/Problem 5 - 10:23, 29 January 2014 (diff | hist) . . (+1) . . 2013 AMC 12B Problems/Problem 20 (→Solution)
- 10:23, 29 January 2014 (diff | hist) . . (+34) . . 2013 AMC 12B Problems/Problem 20 (→Solution)
- 10:22, 29 January 2014 (diff | hist) . . (-279) . . 2013 AMC 12B Problems/Problem 20 (→Solution)
- 13:32, 28 January 2014 (diff | hist) . . (+133) . . 2013 AMC 12A Problems/Problem 25
- 13:28, 28 January 2014 (diff | hist) . . (-12) . . 2013 AMC 12A Problems/Problem 25
- 05:25, 8 March 2013 (diff | hist) . . (-3) . . 2010 AIME I Problems/Problem 15 (→Solution 4)
- 05:22, 8 March 2013
(diff | hist) . .
**(+1,589)** . . 2010 AIME I Problems/Problem 15 - 18:42, 25 February 2013
(diff | hist) . .
**(+1,383)** . . 2012 AIME II Problems/Problem 13 - 14:04, 25 February 2013 (diff | hist) . . (-202) . . 2013 AMC 12B Problems/Problem 20 (→Solution)
- 13:28, 25 February 2013
(diff | hist) . .
**(+1,310)** . . 2013 AMC 12B Problems/Problem 24 (→Solution) - 22:55, 13 February 2013 (diff | hist) . . (+29) . . 2013 AMC 12A Problems/Problem 20
- 22:55, 13 February 2013 (diff | hist) . . (+2) . . 2013 AMC 12A Problems/Problem 20
- 22:54, 13 February 2013 (diff | hist) . . (+9) . . 2013 AMC 12A Problems/Problem 20
- 17:32, 12 February 2013
(diff | hist) . .
**(+1,101)** . . 2013 AMC 12A Problems/Problem 16 - 12:22, 12 February 2013 (diff | hist) . . (+381) . . 2013 AMC 12A Problems/Problem 19
- 12:15, 12 February 2013 (diff | hist) . . (+310) . . 2013 AMC 12A Problems/Problem 21
- 12:08, 12 February 2013 (diff | hist) . . (+1) . . 2013 AMC 12A Problems/Problem 24
- 12:08, 12 February 2013 (diff | hist) . . (-1) . . 2013 AMC 12A Problems (→Problem 24)
- 12:07, 12 February 2013 (diff | hist) . . (+9) . . 2013 AMC 12A Problems (Undo revision 51039 by Lightest (talk))
- 12:07, 12 February 2013 (diff | hist) . . (-9) . . 2013 AMC 12A Problems (→Problem 24)
- 09:31, 12 February 2013
(diff | hist) . .
**(+1,997)** . . N 2013 AMC 12A Problems/Problem 20 (Created page with "Imagine 19 numbers are just 19 persons sitting evenly around a circle <math>C</math>; each of them is facing to the center. One may check that <math>x \succ y</math> iff <math>...") - 15:19, 11 February 2013 (diff | hist) . . (+18) . . 2013 AMC 12A Problems/Problem 25
- 15:17, 11 February 2013
(diff | hist) . .
**(+1,660)** . . N 2013 AMC 12A Problems/Problem 25 (Created page with "Suppose <math>f(z)=z^2+iz+1=c=a+bi</math>. We look for <math>z</math> with <math>Im(z)>0</math> such that <math>a,b</math> are integers where <math>|a|, |b|\leq 10</math>. First...") - 15:00, 11 February 2013 (diff | hist) . . (+186) . . 2013 AMC 12A Problems/Problem 24
- 14:55, 11 February 2013
(diff | hist) . .
**(+2,002)** . . N 2013 AMC 12A Problems/Problem 24 (Created page with "Suppose <math>p</math> is the answer. We calculate <math>1-p</math>. Assume that the circumradius of the 12-gon is <math>1</math>, and the 6 different lengths are <math>a_1</mat...") - 17:20, 31 December 2012 (diff | hist) . . (+43) . . 2009 AMC 12B Problems/Problem 25 (→Solution 2)
- 17:19, 31 December 2012 (diff | hist) . . (-4) . . 2009 AMC 12B Problems/Problem 25 (→Solution 2)
- 17:18, 31 December 2012
(diff | hist) . .
**(+1,814)** . . 2009 AMC 12B Problems/Problem 25 - 04:19, 7 December 2012
(diff | hist) . .
**(+3,624)** . . 2012 AMC 12A Problems/Problem 22 (→Problem) - 00:00, 7 December 2012 (diff | hist) . . (-1) . . 2012 AMC 10B Problems/Problem 25 (→Solution)
- 13:20, 6 December 2012 (diff | hist) . . (+8) . . 2012 AMC 12B Problems/Problem 25 (→Solution 2)
- 13:20, 6 December 2012 (diff | hist) . . (+48) . . 2012 AMC 12B Problems/Problem 25 (→Solution 2)
- 13:19, 6 December 2012 (diff | hist) . . (+96) . . 2012 AMC 12B Problems/Problem 25 (→Solution 2)
- 13:16, 6 December 2012 (diff | hist) . . (+76) . . 2012 AMC 12B Problems/Problem 25 (→Solution 2)
- 13:11, 6 December 2012 (diff | hist) . . (+1) . . 2012 AMC 12B Problems/Problem 25 (→Solution 2)
- 13:09, 6 December 2012 (diff | hist) . . (+1) . . 2012 AMC 12B Problems/Problem 25 (→Solution 2)
- 13:07, 6 December 2012 (diff | hist) . . (-1) . . 2012 AMC 12B Problems/Problem 25 (→Solution 1)
- 13:06, 6 December 2012
(diff | hist) . .
**(+1,949)** . . 2012 AMC 12B Problems/Problem 25 - 04:55, 6 December 2012 (diff | hist) . . (+18) . . 2012 AMC 12B Problems/Problem 24 (→Solution)
- 04:48, 6 December 2012 (diff | hist) . . (+20) . . 2012 AMC 12B Problems/Problem 24 (→Solution: missed an important case)
- 04:25, 6 December 2012 (diff | hist) . . (-51) . . 2012 AMC 12B Problems/Problem 24 (→Solution)
- 04:22, 6 December 2012 (diff | hist) . . (+20) . . 2012 AMC 12B Problems/Problem 24 (→Solution)
- 04:21, 6 December 2012 (diff | hist) . . (+89) . . 2012 AMC 12B Problems/Problem 24 (→Solution)
- 04:18, 6 December 2012 (diff | hist) . . (+28) . . 2012 AMC 12B Problems/Problem 24 (→Solution)
- 04:16, 6 December 2012 (diff | hist) . . (-8) . . 2012 AMC 12B Problems/Problem 24 (→Solution)
- 04:15, 6 December 2012
(diff | hist) . .
**(+2,713)** . . N 2012 AMC 12B Problems/Problem 24 (Created page with "== Problem 24 == Define the function <math>f_1</math> on the positive integers by setting <math>f_1(1)=1</math> and if <math>n=p_1^{e_1}p_2^{e_2}\cdots p_k^{e_k}</math> is the p...") - 03:09, 6 December 2012 (diff | hist) . . (-209) . . 2012 AMC 12B Problems/Problem 23 (→Solution)
- 03:03, 6 December 2012
(diff | hist) . .
**(+1,967)** . . 2012 AMC 12B Problems/Problem 23 - 01:31, 6 December 2012
(diff | hist) . .
**(+1,239)** . . 2012 AMC 12B Problems/Problem 23 - 17:38, 5 December 2012 (diff | hist) . . (+155) . . 2012 AMC 12B Problems/Problem 23
- 22:51, 4 December 2012 (diff | hist) . . (-30) . . 2012 AMC 10B Problems/Problem 25 (→Solution)
- 22:51, 4 December 2012 (diff | hist) . . (+12) . . 2012 AMC 10B Problems/Problem 25 (→Solution)
- 22:50, 4 December 2012
(diff | hist) . .
**(+6,187)** . . 2012 AMC 10B Problems/Problem 25 - 22:17, 4 December 2012 (diff | hist) . . (+32) . . 2012 AMC 12B Problems/Problem 21
- 22:15, 4 December 2012
(diff | hist) . .
**(+1,844)** . . 2012 AMC 12B Problems/Problem 21 - 11:32, 4 December 2012 (diff | hist) . . (+29) . . 2012 AMC 12B Problems/Problem 20 (→Solution)
- 11:31, 4 December 2012
(diff | hist) . .
**(+2,006)** . . N 2012 AMC 12B Problems/Problem 20 (Created page with "== Problem 20 == A trapezoid has side lengths 3, 5, 7, and 11. The sums of all the possible areas of the trapezoid can be written in the form of <math>r_1\sqrt{n_1}+r_2\sqrt{n_2...") - 10:20, 4 December 2012
(diff | hist) . .
**(+1,686)** . . N 2012 AMC 12B Problems/Problem 18 (Created page with "== Problem 18 == Let <math>(a_1,a_2, \dots ,a_{10})</math> be a list of the first 10 positive integers such that for each <math>2 \le i \le 10</math> either <math>a_i+1</math> o...") - 00:57, 4 December 2012
(diff | hist) . .
**(+1,598)** . . 2009 AMC 12A Problems/Problem 23 - 00:50, 4 December 2012 (diff | hist) . . (+28) . . 2012 AMC 12B Problems/Problem 17 (→Solution 3 (Fast))
- 00:49, 4 December 2012
(diff | hist) . .
**(+799)** . . 2012 AMC 12B Problems/Problem 17 - 14:37, 7 May 2012 (diff | hist) . . (0) . . User:Lightest (→Problem 2)
- 14:37, 7 May 2012 (diff | hist) . . (-3) . . User:Lightest (→Problem 3)
- 14:36, 7 May 2012 (diff | hist) . . (+2) . . User:Lightest (→Solution)
- 14:35, 7 May 2012
(diff | hist) . .
**(+696)** . . User:Lightest (→Problem 3) - 14:34, 7 May 2012 (diff | hist) . . (-1) . . 2012 USAJMO Problems/Problem 3 (→Solution 3)
- 14:34, 7 May 2012 (diff | hist) . . (+10) . . 2012 USAJMO Problems/Problem 3 (→Solution 3)
- 14:33, 7 May 2012 (diff | hist) . . (-189) . . 2012 USAJMO Problems/Problem 3 (→Solution 3)
- 14:31, 7 May 2012 (diff | hist) . . (+54) . . 2012 USAJMO Problems/Problem 3 (→Solution 3)
- 14:30, 7 May 2012
(diff | hist) . .
**(+879)** . . 2012 USAJMO Problems/Problem 3 - 12:04, 7 May 2012 (diff | hist) . . (-56) . . User:Lightest (→Problem 3)
- 12:02, 7 May 2012 (diff | hist) . . (+3) . . User:Lightest (→Problem 3)
- 12:01, 7 May 2012
(diff | hist) . .
**(+2,372)** . . User:Lightest - 19:43, 6 May 2012 (diff | hist) . . (-25) . . User:Lightest (→Solution outline)
- 19:43, 6 May 2012 (diff | hist) . . (+155) . . User:Lightest (→Problem 4)
- 19:41, 6 May 2012 (diff | hist) . . (+1) . . 2012 USAJMO Problems/Problem 4 (→Solution)
- 19:41, 6 May 2012 (diff | hist) . . (+75) . . 2012 USAJMO Problems/Problem 4 (→Solution)
- 19:33, 6 May 2012 (diff | hist) . . (-26) . . 2012 USAJMO Problems/Problem 4 (→Solution)
- 19:30, 6 May 2012 (diff | hist) . . (+89) . . 2012 USAJMO Problems/Problem 4 (→Solution)
- 19:27, 6 May 2012
(diff | hist) . .
**(+2,699)** . . 2012 USAJMO Problems/Problem 4 (→Solution) - 19:24, 6 May 2012 (diff | hist) . . (+254) . . User:Lightest (→Solution outline)
- 19:21, 6 May 2012
(diff | hist) . .
**(+2,415)** . . User:Lightest (→Problem 4) - 10:04, 6 May 2012
(diff | hist) . .
**(+3,003)** . . User:Lightest - 09:15, 5 May 2012 (diff | hist) . . (+14) . . 2012 USAMO Problems/Problem 5 (→Solution)
- 21:36, 3 May 2012 (diff | hist) . . (+251) . . N Talk:2012 USAMO Problems/Problem 5 (Created page with "To ensure that Menelaus' Theorem works, isn't it necessary to check the configuration of the points so that the product of those "oriented ratios" is actually <math>-1</math> but...") (current)
- 21:29, 3 May 2012 (diff | hist) . . (-18) . . Talk:2012 USAMO Problems/Problem 4 (current)
- 21:29, 3 May 2012 (diff | hist) . . (+2) . . Talk:2012 USAMO Problems/Problem 4
- 21:29, 3 May 2012 (diff | hist) . . (+9) . . Talk:2012 USAMO Problems/Problem 4
- 21:28, 3 May 2012 (diff | hist) . . (+27) . . Talk:2012 USAMO Problems/Problem 4
- 21:28, 3 May 2012 (diff | hist) . . (-8) . . Talk:2012 USAMO Problems/Problem 4
- 21:27, 3 May 2012 (diff | hist) . . (+6) . . Talk:2012 USAMO Problems/Problem 4
- 21:26, 3 May 2012 (diff | hist) . . (+13) . . Talk:2012 USAMO Problems/Problem 4
- 21:26, 3 May 2012
(diff | hist) . .
**(-2,124)** . . Talk:2012 USAMO Problems/Problem 4 - 21:25, 3 May 2012
(diff | hist) . .
**(+2,178)** . . Talk:2012 USAMO Problems/Problem 4 - 21:25, 3 May 2012
(diff | hist) . .
**(+2,176)** . . N Talk:2012 USAMO Problems/Problem 4 (Created page with "Though not as elegant as the inductive proof, my proof for this problem is quite different from the one posted in the Page, so I would like to paste it here just for reference. ...")

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