Hi everyone, I am REALLY confused and lost on where about to begin a conversion of a rectangular iterated integral to a spherical iterated integral. Can someone kind of guide me through on what to do first? Like for example, I drew the initial iterated integral in both 2d and 3d diagrams, but I have no clue what to do from here. The period is about the only thing I can figure out. Can anyone guide me as to what I should be looking for or doing first? I am having a rough time getting started. Any help is greatly appreciated!