यदि \(A=\{1,2,3,4,5\}\) और (R={(a,b):\(a\equiv b \pmod{4}\)}) है, तो ([1]) क्या होगा?
If \(A=\{1,2,3,4,5\}\) and (R={(a,b):\(a\equiv b \pmod{4}\)}), what is ([1])?
Explanation opens after your attempt
Correct Answer
A. ({1,5})
Concept
Both (1) and (5) leave remainder (1) when divided by (4). Hence ([1]={1,5}).
Why this answer is correct
The correct answer is A. ({1,5}). Both (1) and (5) leave remainder (1) when divided by (4). Hence ([1]={1,5}).
Exam Tip
(1) और (5) दोनों का शेषफल (4) से भाग देने पर (1) है। इसलिए ([1]={1,5}) है।
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