In right angle triangle,the square of the hypotenuse is equal to the sum of square of the other side
Prove that cos square x +cos square (x+pie/3)cos square (x-pie/3)=-3/2
Prove that cos square x +cos square (x+pie/3)cos square (x-pie/3)=-3/2
ABCD is a quadriliteral E F G H are the mid points of AB BC CD and DA respectively Prove that EFGH is a parallelogram
ABCD is a quadriliteral E F G H are the mid points of AB BC CD and DA respectively Prove that EFGH is a parallelogram