9000063106 Level: BDifferentiate the following function. \[ f(x) =\sin x\cos x \]\(f'(x) =\cos 2x,\ x\in \mathbb{R}\)\(f'(x) = 1,\ x\in \mathbb{R}\)\(f'(x) = -\cos 2x,\ x\in \mathbb{R}\)\(f'(x) = -\sin x\cos x,\ x\in \mathbb{R}\)
