\"\"

\

The function is \"\".

\

Determine the function is even or odd.

\

\"\"

\

Substitute \"\".

\

\"\"

\

The integrand \"\" is an even function.

\

\"\"

\

If \"\" is an even function, then \"\".

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\".

\

\"\".

\

\"\"

\

\"\".