I am having trouble doing this problem from my textbook... and have no idea how to doit. 1. The problem statement, all variables and given/known data I am having trouble doing this problem from my textbook... Show that the equation x + y - z + cos(xyz) = 0 can be solved for z = g(x,y) near the origin. Find dg/dx and dg/dy (dg/dx and dg/dy are partial derivatives) 2. Relevant equations Implicit function theorem. 3. The attempt at a solution I tried computing dg/dx and dg/dy like it told me but I think that isn't what its asking..