(6 points each) Let f (1, y) = x² + xy. (a) Compute the gradient vector Vf (1,1). (b) Let u= (3,4). Compute the directio
Posted: Tue May 10, 2022 7:53 pm
(6 points each) Let f (1, y) = x² + xy. (a) Compute the gradient vector Vf (1,1). (b) Let u= (3,4). Compute the directional derivative Duf (1,1). (e) Find an equation of the tangent plane to the graph of f at (1,1,2).