Question: Online Homework 4: Problem 12 (5 points) Find the directional derivative of f(x, y) = sin(x + 2y) at the point (-3, -2) in

Online Homework 4: Problem 12 (5 points) Find the directional derivative of

Online Homework 4: Problem 12 (5 points) Find the directional derivative of f(x, y) = sin(x + 2y) at the point (-3, -2) in the direction 0 = 5/6. The gradient of is: cos(x+2y) Vf= (-3, -2) = 2 cos(x+2y) (cos(-7), 2 cos(-7) The directional derivative is: cos(-7).1

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