1. Find the exact volume of the solid formed by revolving the region enclosed by the following functions around the x-axis. Specify whether you are using disks or washers.

3. Find the exact volume of the solid formed by revolving the region enclosed by the following functions around the y-axis. Specify whether you are using disks or washers.

4. WITHOUT USING CALCULUS: Find the exact volume of the solid formed by revolving the region enclosed by the following functions around the y-axis. Your work must show that you did not use integrals.

5. Suppose that the exact volume of the solid formed be revolving the following functions around the x axis is 3 π. Find the value of b that makes this true.

6. Find the exact volume of the solid formed by revolving the triangle with vertices (1, 0), (2, 1), and (1, 1) around the y-axis.

7. Find the exact volume of the solid formed by revolving the region enclosed by the following functions around the y-axis. Hint: You will have to divide the solid into two parts

8. Find the exact volume of the solid formed by revolving the region enclosed by the following functions around the x-axis. Specify whether you are using disks or washers.