Q1\\ Use the dual Simplex to solve the following LPP Minimize z = 2x1 + 3x2 + 4x3 + 5x4 subject to X1 X2 X3 X4 ≥10, x1-2x2 +3x3-4x4 ≥ 6, 3x1-4x2 +5x3-6x4≥15 X1, X2, X3, X4 20

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