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Mathematics 53 Online
OpenStudy (anonymous):

Set up an equation to find the volume of the solid generated when the enclosed area between y = lnx + 4 and y = e^x is revolved about the y-axis

OpenStudy (anonymous):

hmm is this a calculus problem?

OpenStudy (anonymous):

yeah :(

OpenStudy (anonymous):

which calc? 1,2,3?

OpenStudy (anonymous):

calc I

OpenStudy (anonymous):

it's like the area, volume (disks, washers, etc. ) unit

OpenStudy (anonymous):

lol. surprisingly, i know how to do this using calc 3, but not really calc 1... let me think though

OpenStudy (anonymous):

haha that's okay, whatever works! thanks (:

OpenStudy (anonymous):

wait, so you can't do double integrals right?

OpenStudy (anonymous):

no :(

OpenStudy (anonymous):

dang... i dont know how to do this without double integrals :(... lol if you want the double integral way: all you do is SS y dydx with limits of y being lnx+4 and e^x and limits on x being the solutions to lnx+4-e^x=0

OpenStudy (anonymous):

and times that by 360

OpenStudy (anonymous):

sorry

OpenStudy (anonymous):

ahh that sounds so much easier, I wish I could do that! D: but thanks for your help!

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