1. The problem statement, all variables and given/known data [tex]F = < z^2/x, z^2/y, 2zlog(xy)>[/tex] [tex]F = \nabla f[/tex], where [tex]f = z^2log(xy)[/tex] 2. Relevant equations Evaluate [tex]\int F \cdot ds [/tex] for any path c from [tex] P = (1/2, 4, 2) [/tex] to [tex] Q = (2, 3, 3) [/tex] contained in the region [tex] x > 0, y > 0, z > 0 [/tex] Why is it necessary to specify that the path lie in the region where [tex] x, y, z [/tex] are positive? 3. The attempt at a solution I did [tex] f(2,3,3) - f(1/2,4,2) [/tex] to get [tex] 9*log(6) - 4*log(2) [/tex] I don't really have an idea of how to answer the second question. Does it have to do with closed paths?