inv-trig

Related Questions

• If ${{\cos }^{-1}}x+{{\cos }^{-1}}y+{{\cos }^{-1}}z=3\pi ,$then $xy+yz+zx=$

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

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• ${{\cos }^{-1}}\sqrt{1-x}+{{\sin }^{-1}}\sqrt{1-x}=$

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• If ${{\sin }^{-1}}x+{{\cot }^{-1}}\left( \frac{1}{2} \right)=\frac{\pi }{2},$then x is

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

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