\"\"

\

The integral is \"\".

\

Hyperbolic identity : \"\".

\

Substiute \"\" in the integral \"\".

\

\"\"

\

Rewrite as two integrals.

\

\"\"

\

Multiply and divide the second integral by \"\".

\

\"\"

\

\"\"

\

\"\".

\

Apply integration :

\

\"\"

\

Apply fundemental therom of calculus :

\

\"\"

\

\"\"

\

\"\"

\

\"\".