2. Consider the following function of two variables: z f(x, y) = x/1 + y2 = (a) Find the gradient of the function (b) Find the directional derivative of the function at the point P(5, 3) in the direction of the point Q(8, 4). (c) Suppose that k=e24 andy-2t.|Use the ChainRule to comput4 , and evaluate the expression when t=0. dt'
