If , then find when…

MATHEMATICS · Subjective · CBSE · Mathematics · Continuity and Differentiability · Continuity and Differentiability

Problem

If y=tan⁡−11−cos⁡x1+cos⁡xy = \tan^{-1} \sqrt{\frac{1-\cos x}{1+\cos x}} , then find dydx\frac{dy}{dx} when 0<x<π20 < x < \frac{\pi}{2} .

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