What is the difference between the shell method and disk method?
The disk method is typically easier when evaluating revolutions around the x-axis, whereas the shell method is easier for revolutions around the y-axis---especially for which the final solid will have a hole in it (hence shell).
The disk method is:
The shell method is:
Another main difference is the mentality going into each of these.
While the disk method is about stacking disks of varying radii and shape (defined by the revolution of