Section 14.6: Directional Derivatives & Gradient Vector
Exercise 4
Find the directional derivative of \(f(x, y) = xy^3 - x^2\) at the point \((1, 2)\) in the direction indicated by the angle \(\theta = \pi/3\).
Find the directional derivative of \(f(x, y) = xy^3 - x^2\) at the point \((1, 2)\) in the direction indicated by the angle \(\theta = \pi/3\).