inv-trig

Related Questions

• $\cos \text{ }\left( {{\sin }^{-1}}\frac{5}{13} \right)=$

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• If $\tan (x+y)=33$and $x={{\tan }^{-1}}3,$then y will be

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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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• ${{\tan }^{-1}}\frac{1-{{x}^{2}}}{2x}+{{\cos }^{-1}}\frac{1-{{x}^{2}}}{1+{{x}^{2}}}=$

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

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