inv-trig

Related Questions

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

  ---

• If ${{\cot }^{-1}}\alpha +{{\cot }^{-1}}\beta ={{\cot }^{-1}}x,$then $x=$

  ---

• If ${{\tan }^{-1}}\frac{a+x}{a}+{{\tan }^{-1}}\frac{a-x}{a}=\frac{\pi }{6}$,then ${{x}^{2}}$=

  ---

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

  ---

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

  ---