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Let R be the relation on Z defined by R ...

Let R be the relation on Z defined by `R = {(a , b): a , b in Z , a b`is an integer}.Find the domain and range of R.

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The correct Answer is:
N/a
`R={(a,b)a,b in Z,a-b` is an interger.} `becausea in Z and b inZand(a-b)` is an interger. Therefore, domain of R = Z and range of R = Z.
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