19 July 2015

• 02:5102:51, 19 July 2015 diff hist +3 2006 IMO Problems/Problem 3 →Problem

5 July 2015

• 07:0307:03, 5 July 2015 diff hist 0 Brahmagupta's Formula No edit summary

4 July 2015

• 21:0821:08, 4 July 2015 diff hist −1 Brahmagupta's Formula No edit summary

26 September 2014

• 04:0204:02, 26 September 2014 diff hist +334 Fermat point No edit summary
• 03:5803:58, 26 September 2014 diff hist +257 Centroid No edit summary

6 September 2014

• 08:4708:47, 6 September 2014 diff hist −25 2010 AMC 10B Problems/Problem 1 No edit summary
• 08:4508:45, 6 September 2014 diff hist −4 2006 AMC 10B Problems/Problem 18 No edit summary
• 08:4308:43, 6 September 2014 diff hist +21 2012 AIME I Problems/Problem 3 No edit summary
• 08:4108:41, 6 September 2014 diff hist +316 1997 AJHSME Problems/Problem 24 No edit summary
• 08:3208:32, 6 September 2014 diff hist +436 2012 AMC 10A Problems/Problem 3 No edit summary
• 08:0508:05, 6 September 2014 diff hist +6 Law of Cosines No edit summary
• 08:0008:00, 6 September 2014 diff hist +11 Law of Sines No edit summary

5 July 2014

• 03:0003:00, 5 July 2014 diff hist +540 1995 AHSME Problems/Problem 17 No edit summary

23 May 2014

• 05:1205:12, 23 May 2014 diff hist +4 Lucas Numbers No edit summary

22 May 2014

• 22:5022:50, 22 May 2014 diff hist +113 Euler's totient function →Identities
• 22:4522:45, 22 May 2014 diff hist +195 Euler's Totient Theorem No edit summary
• 22:1522:15, 22 May 2014 diff hist +315 N 2006 IMO Problems/Problem 6 Created page with "==Problem== Assign to each side <math>b</math> of a convex polygon <math>P</math> the maximum area of a triangle that has <math>b</math> as a side and is contained in <math>P</ma..."
• 22:1422:14, 22 May 2014 diff hist +305 N 2006 IMO Problems/Problem 3 Created page with "==Problem== Determine the least real number <math>M</math> such that the inequality <math> \left|ab\left(a^{2}-b^{2}\right)+bc\left(b^{2}-c^{2}\right)+ca\left(c^{2}-a^{2}\right)|..."
• 22:1222:12, 22 May 2014 diff hist +1 2006 IMO Problems/Problem 1 No edit summary
• 22:1122:11, 22 May 2014 diff hist +305 N 2006 IMO Problems/Problem 1 Created page with "==Problem== Let <math>ABC</math> be triangle with incenter <math>I</math>. A point <math>P</math> in the interior of the triangle satisfies <math>\angle PBA+\angle PCA = \angle P..."
• 22:0522:05, 22 May 2014 diff hist +325 N 1994 USAMO Problems/Problem 3 Created page with "==Problem== A convex hexagon <math>ABCDEF</math> is inscribed in a circle such that <math>AB=CD=EF</math> and diagonals <math>AD,BE</math>, and <math>CF</math> are concurrent. Le..."
• 22:0222:02, 22 May 2014 diff hist +550 N 1994 USAMO Problems/Problem 2 Created page with "==Problem== The sides of a <math>99</math>-gon are initially colored so that consecutive sides are red, blue, red, blue,..., red, blue, yellow. We make a sequence of modification..."
• 22:0122:01, 22 May 2014 diff hist +331 1994 USAMO Problems/Problem 1 No edit summary

25 April 2014

• 09:5509:55, 25 April 2014 diff hist +18 2005 CEMC Gauss (Grade 7) Problems/Problem 1 No edit summary

31 March 2014

• 05:4805:48, 31 March 2014 diff hist +18 2014 AIME II Problems/Problem 14 No edit summary
• 04:3204:32, 31 March 2014 diff hist +36 2014 AIME II Problems/Problem 14 No edit summary
• 03:5703:57, 31 March 2014 diff hist +21 2014 AIME II Problems/Problem 14 No edit summary
• 03:5703:57, 31 March 2014 diff hist +34 2014 AIME II Problems/Problem 14 No edit summary
• 03:5403:54, 31 March 2014 diff hist +124 2014 AIME II Problems/Problem 14 No edit summary
• 03:4203:42, 31 March 2014 diff hist +34 m 2014 AIME II Problems/Problem 14 No edit summary