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If (A) has (n) elements, how many total pairs are in (A \times A)?

Answer and explanation

Correct answer: (n^2)

Step 1: In (A \times A), each element can appear in the first and second position. Step 2: So total pairs are (n \times n=n^2). Step 3: Reflexive relation needs (n) compulsory pairs, while (A \times A) has (n^2) possible pairs.

Related tags

Cartesian ProductTotal PairsReflexive RelationMcqRelations And FunctionsMathematicsClass 12 Mcq

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