Find area of the region between the graph of a rational function and
-axis on a resticted domain.
The rational expression is
.
Rewrite the expression into partial fraction.
\
.
Find the values of
,
and
.
Multiple each side by the denominator fraction.
\

.
.
Equate the coefficent of
,
and constants.
,
and 
,
and
.
Substitute
in
.

.


Substitute
in
.


Substitute the
in
.

.
Substitute
in
.

Substitute
in
.


,
and
.
Substitute
,
and
values in equation
.

The partial decomposed function is
.
The partial decomposed function is
.