- #1
jcfor3ver
- 30
- 0
Homework Statement
Heres the question.
Use shell method to find volume:
y=3+2x-x^2 with boundaries: y=0, x=0, intercept x=3 and rotate around x=4
Homework Equations
I know that V=2pi (integral from 0 to 3) (radius)*(height) dx
The Attempt at a Solution
My radius was (4-x) and my ht was y=3+2x-x^2
now my answer was aprox= 155.51, and i triple checked it. What the hell am I doing wrong because it seems like that volume is much too large for an answer. my exact answer was 99/2pi