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(1 point) Let A and B be the following matrices. -9 -1 -8 2 B = -5 4 1 A = 1 2 8 -4 7 1 Perform the following operations: 64

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A - 一9 -8 B= - S 4 2 -4 64 64 -I6 8A -8 3 2 -56 7 2 18- -45 72 -8 2 A 9 B 4 5 27 4 72 36 - 1 -q 81 7 44 4 9 26 -/T 71 45 2 3

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