10. [-10.83 Points] SCALCET814.6.033. Suppose that over a certain region of space the electrical potential V is given by the following equation. V(X, y, z) = 4x2 3X}! + xyz (3) Find the rate of change of the potential at PH, 2, 5} in the direction of the vector v = i + j - k. (b) In which direction does Vchange most rapidly at P? (c) What is the maximum rate of Change at P