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If (A={1,2,3,4}) and (R) is symmetric with ((1,4)\notin R), which conclusion is definite?

Answer and explanation

Correct answer: If ((4,1)\in R), then ((1,4)\in R), so ((4,1)\notin R)

Step 1: In a symmetric relation, ((4,1)\in R) would force ((1,4)\in R). Step 2: Since ((1,4)\notin R), ((4,1)) cannot be in (R). Step 3: In symmetric relations, absence of an off-diagonal pair also implies absence of its reverse.

Related tags

Absence Of PairSymmetric RelationLogicClass 12Relations And FunctionsMathematicsClass 12 Mcq

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