Thread: Finding volume between curves

How could I find the volume between the curves y= e^3 and y=x , rotated about the x-axis? Should I be using the disk/washer method or the cylindrical method?

As stated, your problem doesn't make any sense. e^3 is a constant. So you have the straight line y = e^3, and the straight line y = x. Those are intersecting straight lines - they don't enclose any area. Could you please re-state the problem precisely?

oops, i meant e^(3x^2) instead of e^3

Do you have an interval for this solid of revolution? Those two curves don't intersect. However, if you have a y or x interval, then we can proceed.