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
.


.
.