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

1 Answer

Mar 11, 2015

Try this:
enter image source here
$= π \frac{e^{2} + 1}{2}$ $=pi(e^2+1)/2$

(check my maths!)

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