A what is the gradient of f b what is gradient of point


f(x, y) = sin(3x + 4y), P(-4, 3), u = 1/2(√3i - j)

(a) What is the gradient of f?

f(x, y) =   

(b) What is gradient of point P?

f(-4, 3) =   

(c) What is the rate of change of f at P in the direction of the vector u?

Duf(-4, 3) =

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Mathematics: A what is the gradient of f b what is gradient of point
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