The curves are
and
.
Find the intersection points by equating the two curves.
\
The area of curve
.
The intersection points are the limits of the integration.
\The area lies between
to
.
Required area is inside the first curve and out side the second curve.
\So, the difference between first curve and second curve.
\

Graph the curves
and
.
.gif\")
Observe the graph:
\The curves are symmetric about horizontal axis
, so the area,

.
Apply sum and difference formula in integration
.


.
The area is
.