Consider the following Gauss-Jordan reduction: 1 3 1 3 1 3 1 1 18 -1 -6 -18 1 1 1 0 = 1 -> 1 1 1 1 1 E,A E,E½E‚A E4E‚E½E‚A Find E E2 = Ez = E = Write A as a product A = E,'E,'E,'E,' of elementary matrices: %3D 1 6. 18 -1 1

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