1.

\[{{\sin }^{-1}}\frac{1}{\sqrt{5}}+{{\cot }^{-1}}3\]is equal to   [MP PET 1993; Karnataka CET 1995]

A. \[\frac{\pi }{6}\]
B. \[\frac{\pi }{4}\]
C. \[\frac{\pi }{3}\]
D. \[\frac{\pi }{2}\]
Answer» C. \[\frac{\pi }{3}\]


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