यदि \(A=\{1,2,3\}\) और \(R=\{(a,b):a\ne b\}\) है, तो कौन-सा pair (R) में नहीं होगा?
If \(A=\{1,2,3\}\) and \(R=\{(a,b):a\ne b\}\), which pair will not be in (R)?
Explanation opens after your attempt
Correct Answer
D. ( (2,2) )
Concept
In ( (2,2) ), both components are equal, so \(a\ne b\) is not satisfied. Diagonal pairs do not appear in a not-equal relation.
Why this answer is correct
The correct answer is D. ( (2,2) ). In ( (2,2) ), both components are equal, so \(a\ne b\) is not satisfied. Diagonal pairs do not appear in a not-equal relation.
Exam Tip
( (2,2) ) में दोनों घटक बराबर हैं, इसलिए \(a\ne b\) पूरी नहीं होती। Not equal relation में diagonal pairs नहीं आते।
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