Mathematics, 04.07.2021 14:00 lizzyyyvv
ifA={1,2} and B={4,5} find A×B and B×A. Also find n A×B, n(B×A). prove that A×B= B×A but n (A×B) =n (B×A)=n(A)×n(B).
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ifA={1,2} and B={4,5} find A×B and B×A. Also find n A×B, n(B×A). prove that A×B= B×A but n (A×B) =n...
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