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Given the relation R={(n,m)n,mZ,n=mn=0}. Which of the following statements about R is correct? R is an equivalence relation R is not an equivalence relation because

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Given the relation R={(n,m)n,mZ,n=mn=0}. Which of the following statements about R is correct? R is an equivalence relation R is not an equivalence relation because it is not symmetric R is not an equivalence relation because it is not reflexive R is not an equivalence relation because it is not transitive

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