5. (15 pts) Find the directional derivative of the function f(x, y) e cos(xy) at the point (2, 0) in the direction of the vector v 3i -4j
Show transcribed image text5. (15 pts) Find the directional derivative of the function f(x, y) e cos(xy) at the point (2, 0) in the direction of the vector v 3i -4j