- #1
silverbell
- 9
- 0
Homework Statement
Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the curves y = 4+3x-x^2 and y+x=4 about the y-axis. Below is a graph of the bounded region.
Homework Equations
V = ∫ a to b 2 pi x f(x)
The Attempt at a Solution
∫from 0 to 4 2 pi (4-x)(4)
∫from 0 to 4 2 pi (16-4x)
∫ [16-4(4) - (16- 4(0))]
0 - 12
-12
I'm not exactly sure how to come about this problem with cylindrical shells.