   Chapter 5.3, Problem 25E

Chapter
Section
Textbook Problem

# (a) Set up an integral for the volume of the solid obtained by rotating the region bounded by the given curve about the specified axis.(b) Use your calculator to evaluate the integral correct to five decimal places. y = sin y ,   0 ≤ y ≤ π ,   x = 0 ;    about  y = 4

To determine

a)

To find:

The integral for the volume of the solid obtained by rotating the region bounded by the given curve about the specified axis.

Explanation

1) Concept:

i. If y  is the radius of the typical shell, then the circumference =2πy and the height is x=f(y)

ii. By the shell method, the volume of the solid by rotating the region under the curve x=f(y) about x- axis from a to b is

V= ab2πxf(y)dy

where,  0a<b

2) Given:

3) Calculation:

As the region is bounded by,

Draw the region using the given curves.

To determine

b)

To evaluate:

The integral ofthe volume of the solid

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