Xy x 2 y 2 3 8 July 8, 2019 16 32 64 128 X 2 x 2y xy 2 y 3 81 3 x 2 xy y 2 )= x 8y Cho xy x 2 y 2 3 8 X 3 x 2 xy 2 y 3 81 Prove that x y 3 xy 3 6y x 2 y 2 8y 3 Derivative of x 3 x 2 y xy 2 y 3 81 4x xy 8 17 x 2y y 2 3 2 X-y 2
