[2/3 Points]Find the local maximum and minimum values and saddle point(s) of the function. You are encouraged to use a calculator or computer to graph the function with a domain and viewpoint that reveals all the important aspects of the function. (Enter your answers as comma-separated lists. If an answer does not exist, enter DNE.)f(x,y)=7-x42x2-y2local maximum value(s)local minimum value(s)saddle point(s)(x,y)=Need Help? [-/3 Points]DETAILSMY NOTES[0/1 Points][0/3 Points]Find the local maximum and minimum values and saddle point(s) of the function. You are encouraged to use a calculator or computer to graph the function with a domain and viewpoint that reveals all the important aspects of the function. (Enter your answers as comma-separated lists. If an answer does not exist, enter DNE.)(x,y)=f(x,y)=2sin(x)sin(y),-local maximum value(s)local minimum value(s)saddle point(s)(x,y)=Need Help? SUBMIT ANSWER[2/3 Points]Find the local maximum and minimum values and saddle point(s) of the function. You are encouraged to use a calculator or computer to graph the function with a domain and viewpoint that reveals all the important aspects of the function. (Enter your answers as comma-separated lists. If an answer does not exist, enter DNE.)f(x,y)=7-x42x2-y2local maximum value(s)local minimum value(s)saddle point(s)(x,y)=Need Help?