I start you off. The upper surface and the lower surface . When they intersect the region over we are integrating is the circle . Now use polar change of variable.
When you say polar change of variable you mean things like
x = rcos theta
y = rsin theta
z = z
and then i would take the triple integral of that?
I always have trouble setting up the problem. =(
Like setting the integral ranges.
When I tried to evaluate the integral, I can do the R part of it, but theres no place for me to put the theta value. Shouldn't there be two different variables in a double integration problem like this?