A) \[\frac{\pi }{3}\]
B) \[\frac{\pi }{6}\]
C) \[-\frac{\pi }{3}\]
D) \[-\frac{\pi }{6}\]
Correct Answer: D
Solution :
The principal value of \[{{\sin }^{-1}}\left( -\frac{1}{2} \right)={{\sin }^{-1}}\,\sin \,(-{{30}^{o}})\] \[=-\frac{\pi }{6}\].
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