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3. (5 pts) Suppose that A is a matrix with det(A) = 10, and B is made from A by performing the pivots 4R1 + R7 → R7 and 3R2 +

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Then mathe obtain by these Given det A=10 No made from A by Performiný prosts Ra Rz+4R Ro + Rs 13R2 in Note that any matno if

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