Example 2.7. Let A = [23] We use ERO A12 (2) on A to obtain U...

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Example 2.7. Let A = [23] We use ERO A12 (2) on A to obtain U = 0 If we use ERO A12 (2) on 0 [19]. we obtain E= Then 2 1 1 1 1 2 EA= = U. 2 1 -2 3 0 Example 2.7. Let A = [23] We use ERO A12 (2) on A to obtain U = 0 If we use ERO A12 (2) on 0 [19]. we obtain E= Then 2 1 1 1 1 2 EA= = U. 2 1 -2 3 0