inv-trig

Related Questions

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

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• ${{\sin }^{-1}}\frac{1}{\sqrt{5}}+{{\cot }^{-1}}3$is equal to

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

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• The principal value of ${{\sin }^{-1}}\left( -\frac{1}{2} \right)$is

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• $\cos \left[ 2{{\cos }^{-1}}\frac{1}{5}+{{\sin }^{-1}}\frac{1}{5} \right]=$

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