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Could anyone please help me out there answering my following questions:
1) Differences between critical & non critical constraints.
2) why the slack of non critical constraint is Zero?Thanks in advance.
Critical constraints are those constraints where the resource is being used in full at the optimal solution. Non-critical constraints are those constraints where the resource is not being fully used at the optimal solution.
Slack is any of a resource that is not being used, so from my first sentence the slack of a critical constraint has to be zero.
I do suggest that you watch the free lectures on linear programming!
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