24. Let gm. z) = 6'1\"\" + 2%: + 1:). Suppose that a piece of fruit is sitting on a table in a room, and at each point (2:, y, z) in space within the room, 9(1, 3;, 2) gives the strength of the odor of the fruit. Suppose that a certain bug always les in the direction in which the fruit odor increases the fastest. Suppose also that the bug always ies with a speed of 2 feet/second. What is the velocity vector of the bug when it is at the position (2, ~2, i)