Q.55 Let A E Rmxn, c E Rn and be Rm. Consider the linear programming primal problem (A) crº≥ b yº (B) crº= by Minimize: cx Ax = b x ≥ 0. subject to: Let 2 and yº be feasible solutions of the primal and its dual, respectively. Which of the following statements are TRUE? (C) If cx = b yº, then rº is optimal for the primal (D) If cx = by, then yº is optimal for the dual

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