Side QR of triangle PQR is produced to a point S as shown in the figure. The bisector of P meets QR at T. Prove that ∠PQR + ∠PRS = 2 ∠PTR
If 1 2 3 , , .... n the eigen values of a square non singular matrix then prove the eigen values of 1 A are , 1 2 3 1 1 1 1 , , .... n
In two isosceles triangle the angle between equal side are equal and their area have the ratio 9:16 there height are as
sides of triangles are given below which of them is right triangles