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Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis.

1. y=8/x
2. y=0
3. x=2
4. x=4

1 Answer

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Final answer:

To find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis, use the method of cylindrical shells and the formula for volume of a solid of revolution. Substitute the given equations and integrate to find the volume.

Step-by-step explanation:

To find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis, we can use the method of cylindrical shells. The formula for the volume of a solid generated by revolving a region about the x-axis is given by:

V = 2π ∫[a, b] x * h(x) dx

In this case, we want to find the volume between the x-values of 3 and 4, so the interval of integration is [3, 4]. The function h(x) represents the height of the cylinder at each x-value, which is the difference between the two equations, y = 8/x and y = 0. The height of the cylinder is given by:

h(x) = (8/x) - 0 = 8/x

Substituting these values into the formula, we have:

V = 2π ∫[3, 4] x * (8/x) dx

Integrating this expression will give us the volume of the solid.

User Pieter Germishuys
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