The integral is
.
Evaluate the integral by substitution.
\If
, then
and
.
Substitute corresponding values in
.

Solve the above integral by using partial fractions.
\
Partial fraction decomposition.
\
Equate
coefficients and equate constants.

Multiply equation
by
and then add two equations.

Substitute
in equation
.

Substitute
and
in equation
.
Partial decomposition of
.

Apply formula :
.

Substitute
.


.
.