How do you find the volume of a solid of revolution washer method?

1 Answer
Aug 30, 2014

Suppose that f(x)geq g(x) for all x in [a,b]. If the region between the graphs of f and g from x=a to x=b is revolved about the x-axis, then the volume of the resulting solid can be found by
V=pi int_a^b{[f(x)]^2-[g(x)]^2}dx