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helpmeplz!
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Homework Statement
Find the volume of solid obtained by rotating the region bounded by y=x^2,y=4 and x=0 about the line x=-2 using the shell method.
Homework Equations
I'm stuck because using disks I got the right answer 136pi/3 but I can't using shells?
The Attempt at a Solution
Integral 2pi (2+x) (4-x^2) dx from x=0 to 2. This gives 88 pi/3..
Please help!