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Find a basis of the column space of the matrix A =...

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Find a basis of the column space of the matrix

A = [[-3,-2,-22,13],[-4,-4,-36,16],[32,28,268,-132]]

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A = [[-3,-2,-22,13],[-4,-4,-36,16],[32,28,268,-132]]

`A=[[-3,-2,-22,13],[-4,-4,-36,16],[32,28,268,-132]]`

rref of A say B=`[[1,0,4,-5],[0,1,5,1],[0,0,0,0]]`

colmn space of A={`([-3],[-4],[32]),([-2],[-4],[28])` }

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