inv-trig

Related Questions

• ${{\cot }^{-1}}\frac{xy+1}{x-y}+{{\cot }^{-1}}\frac{yz+1}{y-z}+{{\cot }^{-1}}\frac{zx+1}{z-x}=$

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• ${{\tan }^{-1}}\left( \frac{x}{y} \right)-{{\tan }^{-1}}\,\left( \frac{x-y}{x+y} \right)$ is

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• The value of $\sin {{\cot }^{-1}}\tan {{\cos }^{-1}}x$ is equal to

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• The value of $\sin \left( 2{{\tan }^{-1}}\left( \frac{1}{3} \right) \right)+\cos ({{\tan }^{-1}}2\sqrt{2})=$

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• $\tan \left[ {{\sec }^{-1}}\sqrt{1+{{x}^{2}}} \right]=$

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