In triangle PQR, the respective length of the sides PQ and PR are denoted by u and v while the length of the median PS is denoted by w. It is known that w is the geometric mean of u and v, and Angle QPR = 60^o.

Determine |cos(Angle PQR) - cos(Angle QRP)|, where |x| denotes the absolute value of x.

(In reply to Solution by Bractals)

Thanks Bractals.

I have hyperlinked your methodology in my solution.

Posted by K Sengupta on 2008-03-08 12:02:23