The standard form of primal model: min -3x1-2x2-4x3 2x1+x2+3x3=60 3x1+3x2+5x3- e2=120 x1+x2-3x3+ s3=150 x1,x2,x3,e2,s3 =>0 a)Write the dual in the standard form. b)What is a reduced cost? What are the reduced costs related to primal model? c)What is a shadow price? What are shadow prices related to primal model?

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