The integral is .
Solve the integral by using partial fractions.
\
Equate the coefficients.
Equate the constants.
\Add the equations (2) and (3).
\Substitute the value in the equation (2).
.
Substitute the values and
in equation (1).
.
Consider then
.
Consider then
.
Substitute the corresponding values in the above equation.
\Substitute and
in the above equation.
.
.
.