inv-trig

Related Questions

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

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• $\tan \left( {{90}^{o}}-{{\cot }^{-1}}\frac{1}{3} \right)=$

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• $\tan \left[ 2{{\tan }^{-1}}\left( \frac{1}{5} \right)-\frac{\pi }{4} \right]=$

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• If ${{\tan }^{-1}}x+{{\tan }^{-1}}y+{{\tan }^{-1}}z=\pi ,$ then $\frac{1}{xy}+\frac{1}{yz}+\frac{1}{zx}=$

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• If $\frac{\pi }{2}\le x\le \frac{3\pi }{2},$then${{\sin }^{-1}}(\sin x)$is equal to

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