The curves are and
.
Find the intersection points by equating the two curves.
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Graph the curves and
.
Observe the graph:
\The intersection region is .
The required area is symmetric about -axis.
And it is four times the area of the region in .
The area of curve .
Required area is inside the first curve and out side the second curve.
\So, the difference between first curve and second curve.
\.
The area is .