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If A = [(0,1,2),(1,2,3),(2,3,4)], B = [(...

If `A = [(0,1,2),(1,2,3),(2,3,4)], B = [(1,-2),(-1,0),(2,-1)]` then find AB and BA.

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The correct Answer is:
`[(3,-2),(5,-5),(7,-8)]`, does not exist
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