(a) Use Excel Solver to solve the model in problem 2 (Please read related portions on Pages 572-574 of the Textbook about how to use Solver to solve a nonlinear programming problem. You do not need to submit the spreadsheet. Just show the optimal solution obtained by Solver). (b) Use Excel Solver to solve the following nonconvex programming problem. Please use the following three initial values for the decision variables: (x1=0,x2=0), (x1=1,x2=1), and (x1=3,x2=1). Show 'optimal' solutions and the corresponding objective values found by Solver for each initial value setting. Which solution is the best? No spreadsheet needed. Minimize f(x)=sin3x1+cos3x2+sin(x1+x2). subject to x1210x210x1+x221100 and x10,x20 (a) Use Excel Solver to solve the model in problem 2 (Please read related portions on Pages 572-574 of the Textbook about how to use Solver to solve a nonlinear programming problem. You do not need to submit the spreadsheet. Just show the optimal solution obtained by Solver). (b) Use Excel Solver to solve the following nonconvex programming problem. Please use the following three initial values for the decision variables: (x1=0,x2=0), (x1=1,x2=1), and (x1=3,x2=1). Show 'optimal' solutions and the corresponding objective values found by Solver for each initial value setting. Which solution is the best? No spreadsheet needed. Minimize f(x)=sin3x1+cos3x2+sin(x1+x2). subject to x1210x210x1+x221100 and x10,x20