Inverse Trigonometric Functions

\(\left( { - \,\infty ,\,1} \right) \cup \left( {2,\,\infty } \right)\)

\(\left( {2,\,\infty } \right)\)

\(\left[ { - {\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}},\,1} \right] \cup \left( {2,\,\infty } \right)\)

\(\left[ { - {\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}},\,1} \right] \cup \left( {2,\,\infty } \right) - \left\{ {{{3 + \sqrt 5 } \over 2},{{3 - \sqrt 5 } \over 2}} \right\}\)