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Find a unit vector in the same direction as (-2, -4) Given f(x, y) = 5x2- 6xy + -2y, find the directional derivative at (x,

Find a unit vector in the same direction as (-2, -4) Given f(x, y) = 5x2- 6xy + -2y, find the directional derivative at (x, y) = (6, 5) in the direction of (-2, -4). Round to 5 decimal places as necessary

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