Use the gradient to find the directional derivative of f(x, y, z) = 9z^(2)sin(4x-5y) at the point P(-π/3, -3π/4, 0) in the direction of u = <0, 1, 0>. Submit an exact answer for the gradient.
Added by Brandon G.
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The gradient of a function f(x, y, z) is given by the vector: ∇f = <∂f/∂x, ∂f/∂y, ∂f/∂z> where ∂f/∂x, ∂f/∂y, and ∂f/∂z are the partial derivatives of f with respect to x, y, and z, respectively. Show more…
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