1.

What is the value of 5 (cos^{-1} frac{ 1}{2} + 7 sin^{-1} ( frac{-1}{2}) ) ?

A. ( frac{ }{2} )
B.
C. ( frac{ }{2} )
D. ( frac{17 }{6} )
Answer» D. ( frac{17 }{6} )


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