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Find an elementary matrix E such that 3 1 4 12 1 |0 - 5 2 -11 matrix E such that 1 3 1.4

Find an elementary matrix E such that 3 1 4 12 1 |0 - 5 2 -11 matrix E such that 1 3 1.4 1 E 0 1 2 1 = 0 3 4 5 1 Find an elementary 13 14 E 0 1 2 1 3 4 5 1 }1 13 14 2 749 3 4 5 1

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