Q18 of 22 Page 2

Let R be the relation on Z defined by a R b if and only if a – b is an even
integer. Find (i) R, (ii) domain R, (iii) range of R.


(i) R = {(a, b): a and b are even integers} ∪ {(c, d): c and d are odd integers}
(ii) Domain = Z
(iii) Range = Z

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