Could someone please explain to me how to find the volume under the curve for y=lnx, y=1, y=2, x=o about the y-axis?
I first solved for x. I'm not sure if I did it correctly. I got x=e to the x(y) Is that correct?
This is the radius, so I then I need to square it and multiply it by pie. However, all my values are in x's and y's, so how could I deceide what the points are on the interval???????
Could someone please help me with this?
Thank you very much