Question

Evaluate the integral.

Answer 1

Step 1:

Solve the above integral by using partial fractions.

--------> (1)

Equate the coefficients.

         -----> equation (2)

Equate the constants.

       -----> equation (3)

Add the equations (2) and (3).

Substitute the value in equation (2).

Substitute the values  and in equation (1).

Partial fractions of .

Step 2:

Solution:

.