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For the function f(x, y) = x² - xy + 3y² + 5x - 4y - 2, find a unit tangent vector to the level curve at the point (3, 1) that has a positive x component.
Round your numbers to four decimal places.

(Directional derivatives and gradient

For the function fx y x xy 3y 5x 4y 2 find a unit tangent vector to the level curve at the point 3 1 that has a positive x component Round your numbers to four class=


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