Question

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

Answer 1

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`