Volume by Cylindrical Shells Method?

TonyLee

New member
y=sqrt(x-1), y=0, x=5; about y=3

I cant seem to get the answer which is 24pi.
Use the shell method to find the volume.

So right now I have 2pi?(y-3)(y^2+1)dy
with the bounds (1,5)

Where did I go wrong
 
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