inv-trig

Related Questions

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

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• The solution set of the equation ${{\sin }^{-1}}x=2{{\tan }^{-1}}x$ is

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

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• $\sin \left( \frac{1}{2}{{\cos }^{-1}}\frac{4}{5} \right)=$

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• ${{\sin }^{-1}}\frac{\sqrt{x}}{\sqrt{x+a}}$ is equal to

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