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8-52.

Let , and . Find the volume of the region revolved about each of the lines below.

  1. -axis

    Be sure to sketch the region before beginning.

  2. -axis

    If , then .

  3. Notice, both the outer and the inner radii are unit longer than in part (a).

  4. Explain why is the incorrect set-up for a washer given.

    True or False?