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Find the volume V of this solid that is rotating the region bounded by the given curves about the x-axis: y=4/x y=0 x=8 x=16. So far I have the integral pi (4/x)^2 - (0)^2 dx. Do I foil 4/x from here? If so, how do I go about doing that? In other problems I've done, that's what I've done from here. Or do I take the antiderivative for the next step?

Calculus1
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|dw:1367719248961:dw|
Am I taking the antiderivative from here? or what
yeah

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Other answers:

would that be 4 ln x?
My diagram says square 4/x
-4/x?
|dw:1367719589813:dw|
did you square the numerator and denominator separately?
yes
oh haha I didn't realize that was legal in the math world. stupid me
huh? that's basic math
sometimes I forget those rules. I got 3pi/16 for the answer
nope
|dw:1367719834362:dw|
I put 16 in for x and then squared that and divided by 16. and subtracted that and what I got for doing the same for 8
that should be your integral
|dw:1367720116352:dw|
do you know how to integrate?
idk haha that's what I did with the last problem and it was right

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