Find the p values of the following questions: tan−1(1)+cos−1(−12 – InterviewSolution

1.	Find the p values of the following questions: tan−1(1)+cos−1(−12)+sin−1(−12) Given expression is not a standard identity, so we separately find the value of tan−1(1),cos−1(−12),sin−1(−12) and simplify it.
Answer» Find the p values of the following questions: $t a n^{- 1} (1) + c o s^{- 1} (- \frac{1}{2}) + s i n^{- 1} (- \frac{1}{2})$ Given expression is not a standard identity, so we separately find the value of $t a n^{- 1} (1), c o s^{- 1} (- \frac{1}{2}), s i n^{- 1} (- \frac{1}{2})$ and simplify it.

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