Given that A is transformed into U by the elementary row operations below, complete E, ¹ and ₂¹ A = E₁¹ -6 12 -18 1 4 -17 5 -8 15 7 Ex: 42 1 -3R₁+R₂ R₂ 1 -6 12 0 5 4 -8 -17 0 -5 E¹ 2R₁+R-R₂ 1 -65 0 2 0 0 1 4 -9 -5 U

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