यदि \(A=\{1,2,3,4\}\) और (R={(a,b):\(a\equiv b \pmod{2}\)}) हो तो (R) कितने वर्ग बनाता है?
If \(A=\{1,2,3,4\}\) and (R={(a,b):\(a\equiv b \pmod{2}\)}), how many classes does (R) form?
Explanation opens after your attempt
Correct Answer
B. (2)
Concept
This relation forms two classes of odd and even numbers. The classes are ({1,3}) and ({2,4}).
Why this answer is correct
The correct answer is B. (2). This relation forms two classes of odd and even numbers. The classes are ({1,3}) and ({2,4}).
Exam Tip
यह संबंध विषम और सम संख्याओं के दो वर्ग बनाता है। वर्ग हैं ({1,3}) और ({2,4})।
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