$\"\"$

The integral is $\"\"$ .

The volume of the solid obtained by rotating about $\"\"$ -axis, the region of the curve $\"\"$ from $\"\"$ to $\"\"$ is

$\"\"$ .

Compare the $\"\"$ with $\"\"$ .

Here radius $\"\"$ and height $\"\"$ .

$\"\"$ represents it is rotation about the line $\"\"$ .

Integral represents volume of the solid obtained by rotating about the line $\"\"$ , the region of the curve $\"\"$ from $\"\"$ to $\"\"$ .

$\"\"$

Integral represents volume of the solid obtained by rotating about the line $\"\"$ , the region of the curve $\"\"$ from $\"\"$ to $\"\"$ .