Originally Posted by
greencheeseca i'm stuck on this problem.
r(u,v) = U^2 i + 2usinv j + ucosv k u =1, v = 0
i already got their partial derivatives
ru(u,v) = 2u +2sinv + cosv
rv(u,v) = 2ucosv -usinv
but i'm stuck here. can i assume that in(z - zo) that zo is zero?