CBSE

MATHEMATICS · Single correct · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

If y=tan⁡x+cot⁡xtan⁡x−cot⁡xy=\frac{\tan x+\cot x}{\tan x-\cot x}, then dydx=\frac{dy}{dx}= (a) 2tan⁡2xsec⁡2x2\tan 2x\sec 2x (b) tan⁡2xsec⁡2x\tan 2x\sec 2x (c) −tan⁡2xsec⁡2x-\tan 2x\sec 2x (d) −2tan⁡2xsec⁡2x-2\tan 2x\sec 2x

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