1.

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

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


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