\"\"

\

The definite integral is \"\".

\

\"\"

\

Write down the expression in partial fraction decomposition.

\

\"\"

\

\"\"

\

Equate coefficients of \"\" terms.

\

\"\"

\

Equate constant terms.

\

\"\"

\

Subtract equations (3) from equations (2).

\

\"\"

\

\"\"

\

Substitute \"\" in equations (2).

\

\"\"

\

Substitute the values  \"\" and \"\" in equation (1).

\

\"\".

\

\"\"

\

\"\"

\

\"\"

\

Consider \"\" then \"\". 

\

Consider \"\" then \"\".

\

Substitute the corresponding values in the above equation.

\

\"\"

\

Substitute \"\" and \"\".

\

\"\"

\

\"\"

\

\"\".

\

\"\"

\

\"\".