, where S is the surface of the cube , above the xy plane So i have computed now i dont know what to do next
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If you insist on using Stoke's theorem here, you need to calculate the curve integral of the six squares that make up the sides of the cube. It would be a lot easier to use the divergence theorem here since dV is a cube.
Stokes thm is Are you trying to find the LHS?
Originally Posted by Danny Stokes thm is Are you trying to find the LHS? Yes
Well, you want to compute for 5 sides of the cube (the bottom is open). Things will cancel though Now the surface integrals Now the first 4 add together give zero (you don't even have to integrate) so your final answer is
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