Find ddx cos2x by using chain rule-

The correct option is D sin 2x Differentiating >by >chain rule #160; #160; (d(cosx)^2/d(cosx))×(dcosx/dx) =2cosx×( sinx) = 2 ...

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Chain Rule of Differentiation

Find ddx co...

Question

Find $\frac{d}{d x} ({cos}^{2} x)$ by using chain rule.

- sin 2 x

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cos 2 x

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- (1 + cos x)

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- 2 {sin}^{2} x

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