Question: In a 0-1 integer programming model, if the constraint x1 - x2 0, it means if project 1 is selected, project 2 _______ . -
In a 0-1 integer programming model, if the constraint x1 - x2 0, it means if project 1 is selected, project 2 _______ .
- must be selected
- must not be selected
- can sometimes be selected
- is unlikely that it will be selected
- None of the above
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