The equations are ,
,
and
.
The volume of the solid generated revolving about the -axis.
Disk method: .
Here radius .
Integral limits are and
.
cubic units.
Verify the result by using graphing utility.
\Graph the integrand .
Find the integral of the function .
Observe the graph:
\Therefore, the integral value is .
Volume of the region:
\Thus, the volume of the region is verified graphically and both the results are same.
\ cubic units.