\(A=\{1,2,3,4,5\}\) पर (R={(a,b):\(a\equiv b \pmod{3}\)}) में ([2]) क्या है?
On \(A=\{1,2,3,4,5\}\), for (R={(a,b):\(a\equiv b \pmod{3}\)}), what is ([2])?
Explanation opens after your attempt
Correct Answer
A. ({2,5})
Concept
(2) and (5) have the same remainder modulo (3). ([2]) contains elements with the same remainder as (2).
Why this answer is correct
The correct answer is A. ({2,5}). (2) and (5) have the same remainder modulo (3). ([2]) contains elements with the same remainder as (2).
Exam Tip
(2) और (5) का \( \pmod{3}\) शेषफल समान है। ([2]) में (2) के समान शेषफल वाले तत्व आते हैं।
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