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Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Hi, please help me solve this problem consisting of linear programming. Thanks

Transcribed Image Text:Consider the following linear programming (LP) problem:
Minimize Z = - 2x,
+ X2
- x3
+ 2x, < 15
2 -3
subject to
3x,
- 2x,
- X2
-x3
-4
- x,
+ X2
x, > 0, x, > 0, x, > 0
-x3
a) Solve by the simplex method.
b) Test the original solution obtained in part (a) for feasibility and for optimality when
the coefficients of x3 are changed to new values as follows:
C3
3
a23
- 2
c) Use duality theory directly to determine if the original solution obtained in part (a) is
still optimal, when the coefficients of x3 are changed as described in part (b).
d) Test the original solution obtained in part (a) for feasibility and for optimality when a
new constraint 2x1 + x2 + 2x3 < 60 is introduced. If the original solution is no
longer optimal, find the new optimal solution.
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