Question: Let u= 1-25 28 and A= 20 4 -5 2 6 7 Is u in the plane in R spanned by the columns of

Let u= 1-25 28 and A= 20 4 -5 2 6 7

Let u= 1-25 28 and A= 20 4 -5 2 6 7 Is u in the plane in R spanned by the columns of A? Why or why not? D

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