11 June 2020

• 22:2122:21, 11 June 2020 diff hist +20 AoPS Wiki:AoPS Community Awards →Perfect USAMO Index
• 22:1822:18, 11 June 2020 diff hist +21 AoPS Wiki:AoPS Community Awards →Perfect AMC 12 Scores
• 22:1722:17, 11 June 2020 diff hist +21 AoPS Wiki:AoPS Community Awards →Perfect AIME Scores

21 February 2016

• 20:3720:37, 21 February 2016 diff hist −158 User:Zhuangzhuang Replaced content with "Yo AOPS" current
• 11:2511:25, 21 February 2016 diff hist +90 2016 AMC 12B Problems/Problem 25 →Solution
• 11:2211:22, 21 February 2016 diff hist +1 2016 AMC 12B Problems/Problem 25 →Solution
• 11:2111:21, 21 February 2016 diff hist +851 2016 AMC 12B Problems/Problem 25 →Solution
• 11:1511:15, 21 February 2016 diff hist +52 2016 AMC 12B Problems/Problem 25 →Problem
• 11:1211:12, 21 February 2016 diff hist +801 2016 AMC 12B Problems/Problem 25 →Problem
• 11:0011:00, 21 February 2016 diff hist +423 N 2016 AMC 12B Problems/Problem 25 Created page with "==Problem== The sequence <math>(a_n)</math> is defined recursively by <math>a_0=1</math>, <math>a_1=\sqrt[19]{2}</math>, and <math>a_n=a_{n-1}a_{n-2}^2</math> for <math>n\geq ..."

15 September 2015

• 21:1721:17, 15 September 2015 diff hist +4 South Carolina MathCounts No edit summary

13 February 2014

• 11:2811:28, 13 February 2014 diff hist +8 m 2014 AMC 12A Problems/Problem 23 →Solution
• 11:2711:27, 13 February 2014 diff hist +131 2014 AMC 12A Problems/Problem 24 No edit summary

30 January 2014

• 11:3811:38, 30 January 2014 diff hist +37 Edge No edit summary

2 January 2014

• 22:1222:12, 2 January 2014 diff hist +13 m 2000 AIME I Problems/Problem 15 →Problem

31 December 2013

• 20:2320:23, 31 December 2013 diff hist −12 m 2001 AIME I Problems/Problem 15 Undo revision 58463 by Zhuangzhuang (talk)
• 20:2220:22, 31 December 2013 diff hist +12 m 2001 AIME I Problems/Problem 15 Undo revision 58462 by Zhuangzhuang (talk)
• 20:2220:22, 31 December 2013 diff hist −12 m 2001 AIME I Problems/Problem 15 →Alternate Solution 2
• 20:2220:22, 31 December 2013 diff hist −9 m 2001 AIME I Problems/Problem 15 →Alternate Solution
• 20:2220:22, 31 December 2013 diff hist +1 m 2001 AIME I Problems/Problem 15 →Solution

22 December 2013

• 14:4714:47, 22 December 2013 diff hist −329 User:Zhuangzhuang No edit summary

9 April 2013

• 19:4919:49, 9 April 2013 diff hist +105 User:Zhuangzhuang No edit summary

5 April 2013

• 21:1721:17, 5 April 2013 diff hist +3 2013 AIME II Problems/Problem 15 →Alternate Solution
• 21:1521:15, 5 April 2013 diff hist +13 2013 AIME II Problems/Problem 15 →Alternate Solution
• 21:1521:15, 5 April 2013 diff hist +186 2013 AIME II Problems/Problem 15 →Alternate Solution
• 21:1221:12, 5 April 2013 diff hist +8 2013 AIME II Problems/Problem 15 No edit summary
• 21:0321:03, 5 April 2013 diff hist +533 2013 AIME II Problems/Problem 15 No edit summary

7 March 2013

• 19:2119:21, 7 March 2013 diff hist +3 User:Zhuangzhuang No edit summary
• 19:2019:20, 7 March 2013 diff hist −1 m 2010 AIME II Problems/Problem 15 →Solution.
• 19:2019:20, 7 March 2013 diff hist −8 m 2010 AIME II Problems/Problem 15 →Problem 15.

26 January 2013

• 21:3421:34, 26 January 2013 diff hist +19 User:Zhuangzhuang No edit summary
• 21:3421:34, 26 January 2013 diff hist +307 User:Zhuangzhuang No edit summary

8 January 2013

• 21:1921:19, 8 January 2013 diff hist +60 N User:Zhuangzhuang Created page with "Hello, this is Andy Xu. I reside in SC, and am in 6th grade."

6 November 2012

• 10:2310:23, 6 November 2012 diff hist +1 m 1996 USAMO Problems/Problem 1 No edit summary
• 10:2110:21, 6 November 2012 diff hist +16 m 1996 USAMO Problems/Problem 1 No edit summary

4 November 2012

• 20:5120:51, 4 November 2012 diff hist +4 1996 USAMO Problems/Problem 1 No edit summary
• 20:5020:50, 4 November 2012 diff hist +124 1996 USAMO Problems/Problem 1 No edit summary
• 20:4820:48, 4 November 2012 diff hist +43 1996 USAMO Problems/Problem 1 No edit summary
• 20:4620:46, 4 November 2012 diff hist +666 N 1996 USAMO Problems/Problem 1 Created page with "First, as <math>180\sin{180^\circ}=0,</math> we omit that term. Now, we multiply by <math>\sin 1^\circ</math> to get, after using product to sum, <math>(\cos 1^\circ-\cos 3^\circ..."
• 09:5109:51, 4 November 2012 diff hist +1 2012 AMC 12A Problems/Problem 25 →Problem

7 July 2012

• 20:5320:53, 7 July 2012 diff hist +1 m 1991 AIME Problems/Problem 9 →Solution 1

1 July 2012

• 17:1317:13, 1 July 2012 diff hist −2 m 1990 AIME Problems/Problem 3 No edit summary