A Level

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

Problem

ddx(x2+cos⁡x)4=\frac{d}{dx}(x^2+\cos x)^4= (a) 4(x2+cos⁡x)(2x−sin⁡x)4(x^2+\cos x)(2x-\sin x) (b) 4(x2−cos⁡x)3(2x−sin⁡x)4(x^2-\cos x)^3(2x-\sin x) (c) 4(x2+cos⁡x)3(2x−sin⁡x)4(x^2+\cos x)^3(2x-\sin x) (d) 4(x2+cos⁡x)3(2x+sin⁡x)4(x^2+\cos x)^3(2x+\sin x)

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