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Determine if the tableaux is; the final answer, requires additional pivoting, indicates no solution to the problem


A b c d e
1 1/2 1/4 0 0 30
0 1 -1/2 1 0 20
0 -1 1 0 1 120

Determine if the tableaux is; the final answer, requires additional pivoting, indicates no solution to the problem


A b c d e
1 1/2 1/4 0 0 30
0 1 -1/2 1 ...