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10) (4 points) Explain, without calculating the determinant, why the columns of the following matrix do not span Rº: (a, b, 2
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loy A = [a by 204+ 3617 |ą las 202 + 3b2 G+G-26-32 [a bio? I az be o a g by 203 + 3bg az bg ol C(A) = span { ar r bi flag] [b

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