inv-trig

Related Questions

• If $2{{\cos }^{-1}}\sqrt{\frac{1+x}{2}}=\frac{\pi }{2},$then $x=$

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• ${{\tan }^{-1}}\frac{a-b}{1+ab}+{{\tan }^{-1}}\frac{b-c}{1+bc}=$

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

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• If ${{\sin }^{-1}}\frac{1}{2}={{\tan }^{-1}}x,$then $x =$

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• The domain of ${{\sin }^{-1}}x$is

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