inv-trig

Question: ${{\sin }^{-1}}\frac{4}{5}+2{{\tan }^{-1}}\frac{1}{3}=$



1) $\frac{\pi }{2}$
2) $\frac{\pi }{3}$
3) $\frac{\pi }{4}$
4) None of these
Solution: Explanation: No Explanation
Inverse trigonometric functions

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