The curve equation is
.
Graph the equation
.

Observe the graph:
\One loop of the curve lies between
.
Area of the region enclosed by the curve is
.
The boundaries of the one loop of a curve are
and
.
Area of the region enclosed by the curve
:
Area of the region enclosed by one loop of the curve is
.








.
Area of the region enclosed by one loop of the curve is
.
Area of the region enclosed by one loop of the curve is
.