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A=[[2/3,1,5/3],[1/3,2/3,4/3],[7/3,2,2/3]...

`A=[[2/3,1,5/3],[1/3,2/3,4/3],[7/3,2,2/3]] and B=[[2/5,3/5,1],[1/5,2/5,4/5],[7/5,6/5,2/5]]` then compute 3A-5B =

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The correct Answer is:
`[(0,0,0),(0,0,0),(0,0,0)]`.
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