Question

We consider the plane region R delimited by the curves y = cos (x) and y...

We consider the plane region R delimited by the curves y = cos (x) and y = (x − π) ^ 2 −2.
(a) Determine the volume of the solid generated by the rotation of R revolves around the
right y = −3.
(b) Determine the volume of the solid generated by the rotation of R revolves around the
right x = 0.

For (a) and (b), observe the following procedure:

- Draw a sketch (2D) of the R region and the axis of rotation.

- Calculate the points of intersection of the two curves.

- On this sketch, draw a standard rectangle.

- Clearly give the width height of this typical rectangle.

- Indicate which method you use (discs or tubes).

- Clearly give the definite integral (s) to be evaluated.

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