Question: 8 Let u = 0 6 8 - 12 -4 Is u in the subset of R spanned by the columns of A? Why

8 Let u = 0 6 8 -12 -4 Is u in the subset of R spanned by the columns of A? Why or why not? and A= 12 21

8 Let u = 0 6 8 - 12 -4 Is u in the subset of R spanned by the columns of A? Why or why not? and A= 12 21

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