## 11 Feb Indian National Mathematical Olympiad 2012

The Indian National Mathematical Olympiad 2012 was held on 5th February, 2012 at various centres all over the country. The North East had three centres at Guwahati, Shillong and Agartala. The questions are given below: 1. Let $$ABCD$$ be a quadrilateral inscribed in a circle. Suppose...