Question: - Derive the relation df = Vf.67 in 3D. Here, of is the change of the function f(x, y, z) along the infinitesimal change

- Derive the relation df = Vf.67 in 3D. Here, of is

- Derive the relation df = Vf.67 in 3D. Here, of is the change of the function f(x, y, z) along the infinitesimal change 87 and Vf is the gradient of f. b. Show that Vf = V. (vf) = 0 + 02 +0! dy

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