This is the question I'm doing for revision for my finals retake
Find the flux of the vector field f = 2xyi + 2yzj + 2xzk
upwards across the portion of the plane
x + y + z = 2a that lies above the square
0 ≤ x ≤ a and 0 ≤ y ≤ a in the xy-plane
I have no problem with the general way to calculate flux, I'm just really bad with finding limits for the equations. There being a z in one equation and not in another is throwing me off a bit. I'm a bit out of practice with Maths as you can probably tell. Thanks in advance.