Question: Let x 1 , x 2 , and x 3 be 0 - 1 variables whose values indicate whether the projects are not done (

Let x1,x2, and x3 be 0-1 variables whose values indicate whether the projects are not done (0) or are done (1). Which answer below indicates that at least two of the projects must be done? x1+x2+x3=2x1-x2=0x1+x2+x32x1+x2+x32
Let x1,x2, and x3 be 0-1 variables whose values indicate whether

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