inv-trig

Question: The value of $\sin \left( 2{{\tan }^{-1}}\left( \frac{1}{3} \right) \right)+\cos ({{\tan }^{-1}}2\sqrt{2})=$



1) $\frac{16}{15}$
2) $\frac{14}{15}$
3) $\frac{12}{15}$
4) $\frac{11}{15}$
Solution: Explanation: No Explanation
Inverse trigonometric functions

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