Question: EX 3 Consider the following problem. Minimize Z = 2X1 + X2 + 3X3 subject to 5X1 +2X2 +7X3 420 3X1 +2X2 +5X3 280 And

EX 3 Consider the following problem. Minimize Z = 2X1 + X2 + 3X3 subject to 5X1 +2X2 +7X3 420 3X1 +2X2 +5X3 280 And X1 0,X2 0,X3 0 a. Using the two-phase method, work through phase 1 step by step. b. Use a software package based on the simplex method to formulate and solve the phase 1 problem. c. Work through phase 2 step by step to solve the original problem. d. Use a computer code based on the simplex method to solve the original

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