Hi. I'm having trouble completing this homework problem.. any help would be greatly appreciated!
Find the length of the parabolic segment r =2/(1-cos?) , ?/2 ? ? ? ? .
I know I need to calculate r[sup:29elfnaf]2[/sup:29elfnaf], and (dr/d?)[sup:29elfnaf]2[/sup:29elfnaf], but once I do that...