inv-trig

Related Questions

• The value of $\cos ({{\tan }^{-1}}(\tan 2))$is

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

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• $4{{\tan }^{-1}}\frac{1}{5}-{{\tan }^{-1}}\frac{1}{70}+{{\tan }^{-1}}\frac{1}{99}=$

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• If ${{\tan }^{-1}}2x+{{\tan }^{-1}}3x=\frac{\pi }{4}$, then $x =$

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• If ${{\sin }^{-1}}\frac{1}{3}+{{\sin }^{-1}}\frac{2}{3}={{\sin }^{-1}}x,$then x is equal to

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