\"\"

\

The curves are \"\" and \"\".

\

The solid is revolving about the line \"\".

\

\"\"

\

Find the intersection points.

\

\"\" and \"\".

\

\"\"

\

Washer method:

\

Volume of the solid is \"\"

\

Here \"\", \"\" .

\

Integrating between \"\" and \"\".

\

\"\"

\

\"\"

\

\"\" cubic units.

\

\"\"

\

Volume of the solid is \"\" cubic units.