inv-trig

Related Questions

• The smallest and the largest values of ${{\tan }^{-1}}\left( \frac{1-x}{1+x} \right)\text{ },\,\,0\le x\le 1$are

  ---

• ${{\tan }^{-1}}\left( \frac{1}{4} \right)+{{\tan }^{-1}}\left( \frac{2}{9} \right)=$

  ---

• ${{\tan }^{-1}}\frac{x}{\sqrt{{{a}^{2}}-{{x}^{2}}}}=$

  ---

• If $2{{\tan }^{-1}}(\cos x)={{\tan }^{-1}}(2\text{cosec }x),$ then x =

  ---

• If ${{\cos }^{-1}}x+{{\cos }^{-1}}y=2\pi ,$then ${{\sin }^{-1}}x+{{\sin }^{-1}}y$is equal to

  ---