User contributions
- 13:09, 22 May 2013 (diff | hist) . . (-213) . . 1967 IMO Problems/Problem 1
- 22:27, 19 May 2013 (diff | hist) . . (0) . . 1967 IMO Problems/Problem 1
- 19:21, 19 May 2013 (diff | hist) . . (+70) . . 1967 IMO Problems/Problem 1
- 19:20, 19 May 2013 (diff | hist) . . (+34) . . 1967 IMO Problems/Problem 1
- 19:20, 19 May 2013 (diff | hist) . . (+34) . . 1967 IMO Problems/Problem 1
- 18:05, 17 May 2013 (diff | hist) . . (+68) . . 1967 IMO Problems/Problem 1
- 18:04, 17 May 2013 (diff | hist) . . (+15) . . 1967 IMO Problems/Problem 1
- 14:27, 17 May 2013 (diff | hist) . . (+42) . . 1967 IMO Problems/Problem 1
- 14:01, 17 May 2013 (diff | hist) . . (+93) . . 1967 IMO Problems/Problem 1
- 01:33, 17 May 2013 (diff | hist) . . (0) . . m 1967 IMO Problems/Problem 1
- 01:33, 17 May 2013 (diff | hist) . . (-2) . . 1967 IMO Problems/Problem 1
- 01:16, 17 May 2013 (diff | hist) . . (+1,928) . . N 1967 IMO Problems/Problem 1 (Created page with "Let ''ABCD'' be a parallelogram with side lengths <math>AB=a, AD=1</math> and with <math>\angle BAD=\alpha</math>. If <math>\Delta ABD</math> is acute, prove that the four circle...")
