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Let R be a relation over the set NxxN an...

Let `R` be a relation over the set `NxxN` and it is defined by `(a,b)R(c,d)impliesa+d=b+c`. Then `R` is

A

reflexive and transitive

B

reflexive and symmetric

C

symmetric and transitive

D

an equivalence relation

Text Solution

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The correct Answer is:
D
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    A
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