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If (R={(a,b):a+b=0}) is defined on integers, what is the correct statement about (R)?

Answer and explanation

Correct answer: It is symmetric

Step 1: If (a+b=0), then after swapping the order, (b+a=0) is also true. Step 2: Hence ((a,b)\in R) implies ((b,a)\in R). Step 3: In sum-based rules, the order does not change the sum, so symmetry is often easier to detect.

Related tags

Integer RelationSum ZeroSymmetric RelationClass 12Relations And FunctionsMathematicsClass 12 Mcq

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