inv-trig

Related Questions

• $\tan \left( {{90}^{o}}-{{\cot }^{-1}}\frac{1}{3} \right)=$

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• If ${{\cos }^{-1}}x-{{\cos }^{-1}}\frac{y}{2}=\alpha $, then $4{{x}^{2}}-4xy\cos \alpha +{{y}^{2}}$ is equal to

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

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• $\tan \left[ {{\cos }^{-1}}\frac{4}{5}+{{\tan }^{-1}}\frac{2}{3} \right]$=

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

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