Q51Numerical2 Marks3 Sep 2023Let f(x, y, z) = x^2 y^3 - 3xz and u = (1,2,2)(1, 2, 2)(1,2,2). Find the directional derivative of f in the direction of the vector u at the point (0,1,−1)(0, 1, -1)(0,1,−1).Your answerPress Enter to check.
