用單純形法(大M法)求解下列線性規(guī)劃 max z=3x1+2x2 2x1+ x2 ≤ 2 3x1 +4 x2 ≥12 x1、x2≥0
用單純形法(大M法)求解下列線性規(guī)劃 max z=3x1-2x2-x3 x1-2x2 + x3 ≤ 11 -4x1 + x2 + 2x3 ≥ 3 -2x1 + x3 = 1 x1、x2、x3≥0
用單純形法求解 max z=2x1+x2 -x1 + x2≤5 2x1-5x2≤10 x1、x2≥0