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Question 9, 15.5.39 HW Score: 71.88%, 11.5 of 16 points Part 2 of 8 O Points: 0 of 1 Sa A function f and a point P are given. Let 0 correspond to the direction of the directional derivative. Complete parts a. through e. f(x,y) = v2+3x + 3y, P( - 1, - V3) a. Find the gradient and evaluate it at P 3 313 The gradient at P is V14 V14 (Type exact answers, using radicals as needed.) b. Find the angles 0 (with respect to the positive x-axis) associated with the directions of maximum increase, maximum decrease, and zero change. What angles are associated with the direction of maximum increase? (Type any angles in radians between 0 and 2x. Type an exact answer, using it as needed. Use a comma to separate answers as needed.)