Answer Happy

Let S be the solid obtained by rotating the region
shown in the figure below about the y-axis.
The x y-coordinate plane is given. There is a
curve and a shaded region on the graph.
Explain why it is difficult to use the washer method to find the
volume V of S.
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Sketch the solid.
What are the circumference c and height h of a
typical cylindrical shell?
c(x)=
h(x)=
Use the method of cylindrical shells to find the volume
V of S.