$\"\"$

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

Consider $\"\"$ .

Area of the region:

If $\"\"$ is continuous and non-negative on the closed interval $\"\"$ , then the area of the region bounded by the graph $\"\"$ , the $\"\"$ -axis and the vertical lines $\"\"$ and $\"\"$ is given by area $\"\"$ . $\"\"$

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

$\"\"$

$\"\"$ square units. $\"\"$

$\"\"$ square units.