Each slab of width dx of the resulting solid is a circular disc with volume
pi (ln x)^2 dx
Integrate that function from x=1 to x=3.
You do the steps. We'll be glad to critique your work.
Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis.
y=ln x, y=0, x=1, x=3
Please show the steps in your work, thanks! :)
2 answers
This may help you doing the integration:
http://www.karakas-online.de/forum/viewtopic.php?t=4026
http://www.karakas-online.de/forum/viewtopic.php?t=4026