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On (A={1,2,3,4,5,6}), (R={(a,b):a\equiv b+1 \pmod{2}}). What is the correct conclusion about (R)?

Answer and explanation

Correct answer: It is not reflexive

Step 1: On the diagonal, put (b=a), giving (a\equiv a+1 \pmod{2}). Step 2: A number and the next number do not have the same parity. Step 3: If the diagonal condition fails, the relation is not reflexive.

Related tags

Reflexive RelationModuloExpertRelations And FunctionsMathematicsClass 12 Mcq

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