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2. (12 pts) Given the matrix in a R R-E form: [1 1 0 0 3 0 0 0 1 0 -2 0 A = 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 (a) (6 pts) Fin

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Number of non- zuo row in 4. be clearly a basis for now space is 21 o A UIO 03 0 0 0 0 -2 0 0 0 0 0 0 OOOO -5x6 all so. Rack

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