समुच्चय \(A=\{1,2,3,4,5,6,7,8,9,10\}\) पर (\tau(a)=\tau(b)) से बने संबंध में कुल कितने तुल्यता वर्ग हैं?
On \(A=\{1,2,3,4,5,6,7,8,9,10\}\), how many equivalence classes are formed by the relation (\tau(a)=\tau(b))?
Explanation opens after your attempt
A. (4)
Concept
भाजक-संख्या के मान (1,2,3,4) मिलते हैं। / The divisor-count values appearing are (1,2,3,4).
Why this answer is correct
वर्ग ({1}), ({2,3,5,7}), ({4,9}), ({6,8,10}) बनते हैं। / The classes are ({1}), ({2,3,5,7}), ({4,9}), and ({6,8,10}).
Exam Tip
अलग-अलग \(\tau\) मानों की संख्या ही वर्गों की संख्या है। / The number of distinct \(\tau\)-values gives the number of classes.
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