Question

If y = sin(2sin^-1x), then dy/dx is equal to

(A) (2 - 4x²)/√(1 - x²)

(B) (2 + 4x²)/√(1 - x²)

(C) (2 - 4x²)/√(1 + x²)

(D) (2 + 4x²)/√(1 + x²)

Answer 1

Answer is (A) (2 - 4x²)/√(1 - x²)