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[" 65.If "A-2B=([1,-2],[3,0])" and "2A-3...

[" 65.If "A-2B=([1,-2],[3,0])" and "2A-3B=([-3,3],[1,-1])],[" then "B=],[[" 1) "([-5,7],[5,1])," 2) "([-5,7],[-5,-1])],[" 3) "([-5,7],[5,-1])," 4) "([-5,-7],[-5,-1])]]

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