1.

If \[y={{\sin }^{-1}}\sqrt{(1-x)}+{{\cos }^{-1}}\sqrt{x}\], then \[\frac{dy}{dx}=\]

A. \[\frac{1}{\sqrt{x(1-x)}}\]
B. \[\frac{-1}{\sqrt{x(1-x)}}\]
C. \[\frac{1}{\sqrt{x(1+x)}}\]
D. None of these
Answer» C. \[\frac{1}{\sqrt{x(1+x)}}\]


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