Question: Consider an LP (a maximisation problem). Suppose this LP is solved by using the simplex method. In a simplex tableau, there is a non-basic variable

Consider an LP (a maximisation problem). Suppose this LP is solved by using the simplex method. In a simplex tableau, there is a non-basic variable with a negative coefficient in row 0 and a non-positive coefficient in each of the other rows. This LP

(1) has a unique optimal solution. (2) has alternative optimal solutions. (3) is unbounded. (4) is infeasible.

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