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IF A=[{:(1,5,3),(2,4,0),(3,-1,-5):}],B=[...

IF `A=[{:(1,5,3),(2,4,0),(3,-1,-5):}],B=[{:(2,-1,0),(0,-2,5),(1,2,0):}]` then find 3A-4B'.

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The correct Answer is:
`[(-5,15,5),(10,20,-8),(9,-23,-15)]`
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