Question

If y = f((2x - 1)/(x2 + 1)) and f'(x) = sinx2, then dy/dx is

(A) cosx2.f'(x)

(B) - cosx2.f'(x)

(C) 2(1 + x - x2)/(x2 + 1)2 sin((2x - 1)/(x2 + 1))2

(D) of these

Answer 1

Answer is (C) 2(1 + x - x2)/(x2 + 1)2 sin((2x - 1)/(x2 + 1))2