inv-trig

Related Questions

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

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• If ${{\tan }^{-1}}\frac{x-1}{x+1}+{{\tan }^{-1}}\frac{2x-1}{2x+1}={{\tan }^{-1}}\frac{23}{36},$then $x =$

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• $\tan ({{\cos }^{-1}}x)$ is equal to

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• The value of ${{\cos }^{-1}}(\cos 12)-{{\sin }^{-1}}(\sin 14)$ is

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• If ${{\tan }^{-1}}\frac{a+x}{a}+{{\tan }^{-1}}\frac{a-x}{a}=\frac{\pi }{6}$,then ${{x}^{2}}$=

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