How do you use cylindrical shells to find the volume of a solid of revolution?

1 Answer
Sep 25, 2014

If the solid is obtained by rotating the region between the graph of f(x)f(x) and the x-axis from x=ax=a to x=bx=b about the y-axis, the volume VV of the solid can be found by Shell Method:
V=2pi int_a^b xf(x) dxV=2πbaxf(x)dx