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2019-10-01 (2).png

What is the constraint for node 3 in the following shortest path problem? ><Z® O a. —)(13 + X34 = O.
O b. —X13 + X34 5:1.
@ C. 3UX13 + 45X34 = 0. Q d. —X12 + X24 = D.

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