Question

Find the local maximum and minimum values and saddle point(s) of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x, y) = 8 sin x sin y, −π < x < π, −π < y < π

Answer 1

Now checking rt -s^2 at different points to say whether the point is maxima Or minima or saddle point.