rievious Problem Problem List Next Problem (1 point) For each of the following vector fields F , decide whether it is conservative or not by computing curl F . Type in a potential function f (that is, V f = F) If it is not conservative, type N. A F (x,y) = (14x + 4y) i+ (41 + 8y) j f (I, y) = B. F (x, y) = 7yi + 8zj f (I, y) = C. F (x, y, z) - 7xi + 8yj + k f (I, y, z) D. F (x, y) - (7 sing) i + (8y + 71 cosy) j f (z, y) = E. F (x, y, Z) - 7x21+ 4y j + 422k f (I, y, 2) = Note: Your answers should be either expressions of x, y and z (e.g. "3xy + 2yz"), or the letter "N"