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On real numbers, (R={(a,b):(a-b)^2=4}). What type of relation is it?

Answer and explanation

Correct answer: Symmetric

Step 1: If ((a-b)^2=4), then ((b-a)^2=(-(a-b))^2=4). Step 2: Hence the reverse pair also belongs to the relation. Step 3: Squaring removes the effect of the negative sign, giving symmetry.

Related tags

Symmetric RelationSquared DifferenceReal NumbersRelations And FunctionsMathematicsClass 12 Mcq

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