Let f x y be a differentiable function with f x y c a level

Last updated: 8/30/2023

Let f x y be a differentiable function with f x y c a level curve of f Which of the following statements are true Select all that apply Du f zo yo is maximum when u is tangent to the level curve at zo yo Vf zo yo is orthogonal to the level curve at xo 30 Duf xo 30 0 when u is tangent to the level curve at zo yo Vf zo yo is tangent to the level curve at x0 90 f xo 30 c at every point 2o 3o along the level curve