Asked by Bob

Find the volume if the area between the curve y=lnx, x=1, and y=1 is rotated about the x-axis.
Answered by Bob
I tried the integral from 1 to e of 1-lnx^2 but that doesn't work.
Answered by Reiny
You want
pi{integral)(1-lnx)^2 dx from 1 to e