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megski312
 2 years ago
Find the volume V of this solid that is rotating the region bounded by the given curves about the xaxis: 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?
megski312
 2 years ago
Find the volume V of this solid that is rotating the region bounded by the given curves about the xaxis: 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?

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primeralph
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1367719248961:dw

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0Am I taking the antiderivative from here? or what

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0would that be 4 ln x?

primeralph
 2 years ago
Best ResponseYou've already chosen the best response.1My diagram says square 4/x

primeralph
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1367719589813:dw

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0did you square the numerator and denominator separately?

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0oh haha I didn't realize that was legal in the math world. stupid me

primeralph
 2 years ago
Best ResponseYou've already chosen the best response.1huh? that's basic math

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0sometimes I forget those rules. I got 3pi/16 for the answer

primeralph
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1367719834362:dw

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0I 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

primeralph
 2 years ago
Best ResponseYou've already chosen the best response.1that should be your integral

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1367720116352:dw

primeralph
 2 years ago
Best ResponseYou've already chosen the best response.1do you know how to integrate?

megski312
 2 years ago
Best ResponseYou've already chosen the best response.0idk haha that's what I did with the last problem and it was right
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