3. [213 Points] DETAILS PREVIOUS ANSWERS SCALCET8 14.7.019. MY NOTES PRACTICE ANOTHER 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) = y2 2y cos(x), 1 S X S 7 local maximum value(s) DNE w/ local minimum value(s) *4 X Ti: 37: saddle point(s) (x, y, f) = ( 5,0,0),( 7,0,0) 4. [1/2 Points] DETAILS PREVIOUS ANSWERS SCALCET8 14.7.033. MY NOTES PRACTICE ANOTHER Find the absolute maximum and minimum values of f on the set D. f ( x, y ) = x2+ 12+ x2y+ 7, D = {(x, y) | |x|