How do you find the volume of the solid generated by revolving the region bounded by the graph of #y = ln(x)#, the x-axis, the lines #x = 1# and #x = e#, about the y-axis?

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Answer 1 · 2015-03-11T02:57:38

Try this:
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#=pi(e^2+1)/2#

(check my maths!)