Section 14.6: Directional Derivatives & Gradient Vector
Exercise 17
Find the directional derivative of the function \(h(r, s, t) = \ln(3r + 6s + 9t)\) at the point \((1, 1, 1)\) in the direction of the vector \(v = 4i + 12j + 6k\).
Find the directional derivative of the function \(h(r, s, t) = \ln(3r + 6s + 9t)\) at the point \((1, 1, 1)\) in the direction of the vector \(v = 4i + 12j + 6k\).