1.

\[{{\cos }^{-1}}\frac{1}{2}+2{{\sin }^{-1}}\frac{1}{2}\]is equal to [MP PET 1998; UPSEAT 2004]

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


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