1.

Find the principal value of each of the following :\(\sin^{-1}\left(\frac{-1}{2}\right)\)

Answer»

\(\sin^{-1}\left(\frac{-1}{2}\right)\)\(=-\sin^{-1}\left(\frac{1}{2}\right)\) [Formula: sin -1(-x) = sin -1(x) ]

\(=-\frac{\pi}{6}\)



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