DEPARTMENT OF MATHEMATICS MATHS 208 - Marked Problem 1 At the end of the week (4pm Friday), you should upload your solution to the marked problem on Canvas. It will be marked out of 5 points. MARKED PROBLEM Suppose f(m,y) = as: + (my, where a and b are two real numbers. Let u = (1, 1) and v = (1,0). Suppose that the directional derivative of f at the point (3, 2) in the direction of u is x/i and that the directional derivative of f at the point (3, 2) in the directimi of v is ~1. Use this information to nd the values of a. and b and then nd all unit vectors w such that the directional derivative of f at the point (3,2) in the direction of w is 0