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Let X1,x2,and X3 Be 0-1 Variables Whose Values Indicate Whether

Question 2

Multiple Choice

Let x1,x2,and x3 be 0-1 variables whose values indicate whether the projects are not done (0) or are done (1) .Which of the following answers indicates that at least two of the projects must be done?


A) x1 + x2 + x3 ≥ 2
B) x1 + x2 + x3 ≤ 2
C) x1 + x2 + x3 = 2
D) x1 − x2 = 0

Correct Answer:

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