00:01
So here's the parabola and when z is equal to 0, radius is 1, so theta is going to be all around.
00:08
R is going to go from 0 to 1 and z is going to go from 0 to top here, which is 1 minus r squared.
00:19
Okay? these are your boundaries, so put that in.
00:24
0 to 2 pi, 0 to 1, 0 to 1 minus r squared.
00:32
Z is z, x is r cosine of theta, y is r sine of theta, and then r dz dr d theta.
00:46
So from here, i think the best thing to do is z squared over 2, so z squared over 2 and r squared cosine theta plus r squared sine theta.
01:10
And from 0 to 1 minus r squared, so put that in there for z like this, and then everything is still in there, r squared sine theta...