1. The problem statement, all variables and given/known data F(x,y,z)=4x i - 2y^2 j +z^2 k S is the cylinder x^2+y^2<=4, The plane 0<=z<=6-x-y Find the flux of F 2. Relevant equations 3. The attempt at a solution What is the difference after if I change the equation to inequality? For example : x^2+y^2<=4, z=0 x^2+y^2<=4 , z=6-x-y x^2+y^2=4, z=6-x-y thanks!