- #1
cathy
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Homework Statement
Use shell method to find volume.
y=x+2
y=x^2
rotate about the x-axis
2. The attempt at a solution
I cannot seem to solve this. I thought this was the way to solve it, but I don't understand if I am missing something crucial.
This is how I set up the integral.
v=integral from 1 to 4 (2pi* y * (y-2-sqrt(y))
This is not giving me the correct answer. Is this that way to set this up?
I also tried the same integral from 0 to 4, and cannot determine what I am doing wrong.
I would appreciate any help.
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