For , the identity is true. Which of the following conclusions about their…

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

Problem

For −1<x<1-1<x<1, the identity arcsin⁡x+arccos⁡x=π2\arcsin x+\arccos x=\dfrac{\pi}{2} is true. Which of the following conclusions about their derivatives on this interval is most consistent with the identity? (a) ddxarcsin⁡x=ddxarccos⁡x\displaystyle \frac{d}{dx}\arcsin x=\frac{d}{dx}\arccos x (b) ddxarcsin⁡x+ddxarccos⁡x=π2\displaystyle \frac{d}{dx}\arcsin x+\frac{d}{dx}\arccos x=\frac{\pi}{2} (c) ddxarcsin⁡x=− ddxarccos⁡x\displaystyle \frac{d}{dx}\arcsin x=-\,\frac{d}{dx}\arccos x (d) ddxarcsin⁡x=1arccos⁡x\displaystyle \frac{d}{dx}\arcsin x=\frac{1}{\arccos x}

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