Which of the following equals ?

MATHEMATICS · Single correct · A Level · Mathematics · Differentiation · Differentiation

Problem

Which of the following equals ddx(x2−3cos⁡x)\dfrac{d}{dx}\bigl(x^{2}-3\cos x\bigr)? (a) 2x−3sin⁡x2x-3\sin x (b) 2x+3sin⁡x2x+3\sin x (c) x−3sin⁡xx-3\sin x (d) 2x+3cos⁡x2x+3\cos x

Related theory

Browse the problem library