inv-trig

Related Questions

• If ${{\cos }^{-1}}\frac{3}{5}-{{\sin }^{-1}}\frac{4}{5}={{\cos }^{-1}}x,$then $x =$

  ---

• $\tan \left( 2{{\cos }^{-1}}\frac{3}{5} \right)=$

  ---

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

  ---

• $\sin \left( \frac{1}{2}{{\cos }^{-1}}\frac{4}{5} \right)=$

  ---

• $\cos \text{ }\left[ {{\cos }^{-1}}\text{ }\left( \frac{-1}{7} \right)+{{\sin }^{-1}}\text{ }\left( \frac{-1}{7} \right) \right]=$

  ---