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Let A=[[1 ,1, 1],[ 3, 3, 3]] , B=[[3,1],...

Let `A=[[1 ,1, 1],[ 3, 3, 3]]` , `B=[[3,1], [5, 2],[-2, 4]]` and `C=[[4,2],[-3,5],[ 5 ,0]]` . Verify that `A B=A C` though `B!=C ,\ A!=O` .

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