Question: If f(e, y) = -4x2 + 3y, find the value of the directional derivative at the point (-2, 1) in the direction given by the

If f(e, y) = -4x2 + 3y, find the value of

the directional derivative at the point (-2, 1) in the direction given

If f(e, y) = -4x2 + 3y, find the value of the directional derivative at the point (-2, 1) in the direction given by the angle 0 = 2 . sqrt(73)

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