Using the artificial constraint procedure introduced in Problem 3, solve the following problem by the dual simplex
Question:
(a) Maximize z = 2x3
Subject to
- x1 + 2x2 - 2x3 ≥ 8
- x1 + x2 + x3 ≤ 4
2x1 - x2 + 4x3 ≤ 10
X1, x2, x3 ≥ 0
(b) Maximize z = x1 - 3x2
Subject to
X1 - x2 ≤ 2
X1 + x2 ≥ 3
2x1 - 2x2 ≥ 3
X1, x2 ≥ 0
(c) Minimize z = - x1 + x2
Subject to
X1 - 4x2 ≥ 5
X1 - 3x2 ≤ 1
2x1 - 5x2 ≥ 1
X1, x2 ≥ 0
(d) Maximize z = 2x3
Subject to
- x1 + 3x2 - 7x3 ≥ 5
- x1 + x2 - x3 ≤ 1
3x1 + x2 - 10x3 ≤ 8
X1, x2, x3 ≥ 0
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