Question

In the adjoining figure, PQR, is a right triangle, right angled at Q. X and Y are the points on PQ and QR such that PX : XQ = 1:2 and QY:YQ = 2:1. Prove that 9 (PY^2 + XR^2) =13 PR^2

Please answer fast for 30 points.

I want quality answer with a correct explaination.

Answer 1

yesterday I had seen this question but I didn't solve it bcoz I believe that I'm not good in maths....but today I relaxed and try to solve this....and I've solved it....thanku so mch for asking this question....I understood now something is difficult but it cannot be impossible.... :)