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  3. show that the columns of the 3 by 4 matrix a [with

Show that the columns of the 3 by 4 matrix A [with rows] = (1...

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Algebra

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Show that the columns of the 3 by 4 matrix A [with rows] = (1 1 1 1) (1 2 ?1 3) (1 0 3 ?2) ? M??(Q) span Q. Then find a rational 4x3 matrix B such that AB=I?.

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