$\"\"$

The equations are $\"\"$ and $\"\"$ .

Area of the region : $\"\"$ .

$\"\"$

Let $\"\"$ .

Differentiate with respect to $\"\"$ .

$\"\"$

Substitute corresponding values in the above integral.

$\"\"$

Substitute $\"\"$ in the above equation.

$\"\"$

Therefore, the area of region is $\"\"$ .

$\"\"$

Draw a coordinate plane.

Graph the function $\"\"$ .

$\"\"$

The area of region is $\"\"$ .

Graph of the function $\"\"$ :

$\"\"$ . \ \