Kamis, 26 Agustus 2010

Indian National Mathematics Olympiad 2000 Problems

Indian National Mathematics Olympiad 2000 Problems1.  The incircle of ABC touches BC, CA, AB at K, L, M respectively. The line through A parallel to LK meets MK at P, and the line through A parallel to MK meets LK at Q. Show that the line PQ bisects AB and bisects AC.