inv-trig

Related Questions

• ${{\cos }^{-1}}\left( \cos \frac{7\pi }{6} \right)=$

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• $\sec (\text{cose}{{\text{c}}^{-1}}x)$ is equal to

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• $\tan \left[ \frac{1}{2}{{\sin }^{-1}}\left( \frac{2a}{1+{{a}^{2}}} \right)+\frac{1}{2}{{\cos }^{-1}}\left( \frac{1-{{a}^{2}}}{1+{{a}^{2}}} \right) \right]=$

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

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• If $2{{\tan }^{-1}}(\cos x)={{\tan }^{-1}}(2\text{cosec }x),$ then x =

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