Calculus
posted by Andrew .
washer method!?
Find the volume of y=x^2+3, y=3, between [0,2] around y=3

Calculus 
Reiny
make a sketch
wouldn't your volume be the same if you rotated y = x^2 around the xaxis, for [0,2] ??
I am sure you can do that easy one.
let me know what you got. 
Calculus 
Andrew
No it wouldnt be the same because one is a disk rule one is a washer rule

Calculus 
Reiny
you are rotating it around y=3, so there is no hole.

Calculus 
Andrew
your right im sorry, i was thinking we were rotating around x=3 lol but will you do it so i can check my answer?

Calculus 
Reiny
I got 32pi/5

Calculus 
Andrew
i think u forgot to add the 2x^3 to the antiderivitive for the fundamental theorm step

Calculus 
jack
nm
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