inv-trig

Related Questions

• If ${{\tan }^{-1}}x+{{\tan }^{-1}}y+{{\tan }^{-1}}z=\pi ,$ then $\frac{1}{xy}+\frac{1}{yz}+\frac{1}{zx}=$

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• The solution of ${{\sin }^{-1}}x-{{\sin }^{-1}}2x=\pm \frac{\pi }{3}$ is

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• If $x$takes non-positive permissible value, then ${{\sin }^{-1}}x$=

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• $2{{\tan }^{-1}}\frac{1}{3}+{{\tan }^{-1}}\frac{1}{2}=$

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• ${{\sin }^{-1}}x+{{\cos }^{-1}}x$ is equal to

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