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) = 9y c05(x), 0 s x s 2,; local maximum value(s) DNE V local minimum value(s) DNE V 117 saddle point(s) (x, y, f) = ( 51)),0) X Nppd len'7i an\