1. The problem statement, all variables and given/known data http://img39.imageshack.us/img39/6669/wileyplus.png [Broken] The field is conservative. With their description of C, and using the Fundamental Theorem of Calculus for Line Integrals, would you evaluate f(11/sqrt(2), 11/sqrt(2)) - f(0,0) or f(11/sqrt(2), 11/sqrt(2)) - f(11,0) ? Their description of C, to me, is that we start at the origin and end at (11/sqrt(2), 11/sqrt(2)). However, their "show solution" shows them doing: f(11/sqrt(2), 11/sqrt(2)) - f(11,0) Either I don't understand, or wiley plus has been wrong for the dozenth time. FYI my answer looks so strange because I kept changing it up to get it to accept. The whole point of path independence is that I don't give a crap about where the circle or whatever starts, the point (11,0) is completely irrelevant!