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3. Assume that you are given a minimization LP that has an optimal solution. a) The original LP model is modified by changing an equality

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3. Assume that you are given a minimization LP that has an optimal solution. a) The original LP model is modified by changing an equality constraint in the problem to a less-than-or- equal to constraint. Is it possible that the modified problem is infeasible? Answer yes or no, and justify. The original LP model is modified by changing a greater-than-or-equal-to constraint in the problem to a less-than-or-equal to constraint. Is it possible that the modified problem is infeasible? Answer yes or no, and justify b)

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