Plot the vector field and guess where div(F) > 0 and where div(F) 0 for y -X O div(F) > 0 for y > x; div(F) 0 for y > -x; div(F) 0 for y x Calculate div(F) to check your guess. div(F) =Find a parametric representation for the surface. the part of the cylinder X2 + 22 = 25 that lies above the xy-plane and between the planes y = 6 and y = 6 (Enter your answer as a comma-separated list of equations. Let X, y, and 2 be in terms of u and/or v.) where6Su36,05v:rr Find the area of the surface. the part of the surface x = 22 + y that lies between the planes y = 0, y = 7, z = 0, and z = 7 25 X