A relation R is defined on the set of integers as xRy if and only if ( – McqOptions

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1.	A relation R is defined on the set of integers as xRy if and only if (x+y) is even. Which of the following statement is TRUE?
A.	R is not an equivalence relation.
B.	R is an equivalence relation having one equivalence classes
C.	R is an equivalence relation having two equivalence classes
D.	R is an equivalence relation having three equivalence classes
Answer» D. R is an equivalence relation having three equivalence classes

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