User contributions
- 16:44, 10 July 2012 (diff | hist) . . (+10) . . 2012 IMO Problems/Problem 1
- 16:43, 10 July 2012 (diff | hist) . . (+12) . . 2012 IMO Problems/Problem 1
- 16:43, 10 July 2012 (diff | hist) . . (+705) . . N 2012 IMO Problems/Problem 1 (Created page with "Problem 1: Given triangle <math>ABC</math> the point <math>J</math> is the centre of the excircle opposite the vertex <math>A.</math> This excircle is tangent to the side <math>...")
