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MATHEMATICS · Multi-part · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

Find f′(x)f'(x) for the following: (a) f(x)=xarctan⁡(2x)f(x)=x\arctan(2x) (b) f(x)=log⁡2(sec⁡x)f(x)=\log_2(\sec x)

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