inv-trig

Related Questions

• If ${{\sin }^{-1}}\frac{3}{5}+{{\cos }^{-1}}\left( \frac{12}{13} \right)={{\sin }^{-1}}C,$then $C =$

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• A solution of the equation ${{\tan }^{-1}}(1+x)$ $+{{\tan }^{-1}}(1-x)$ $=\frac{\pi }{2}$ is

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• If ${{\tan }^{-1}}2x+{{\tan }^{-1}}3x=\frac{\pi }{4}$, then $x =$

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• If ${{\cot }^{-1}}\alpha +{{\cot }^{-1}}\beta ={{\cot }^{-1}}x,$then $x=$

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• ${{\cot }^{-1}}\frac{3}{4}+{{\sin }^{-1}}\frac{5}{13}=$

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