यदि (A) में (5) तत्व हैं तो (\mathcal{P}(A)) में एकल उपसमुच्चयों की संख्या कितनी होगी?
If (A) has (5) elements, how many singleton subsets are in (\mathcal{P}(A))?
Explanation opens after your attempt
Correct Answer
A. (5)
Concept
Each singleton subset is formed from one element, so their number equals (n(A)). Here the number is (5).
Why this answer is correct
The correct answer is A. (5). Each singleton subset is formed from one element, so their number equals (n(A)). Here the number is (5).
Exam Tip
एकल उपसमुच्चय प्रत्येक एक तत्व से बनता है इसलिए उनकी संख्या (n(A)) के बराबर होती है। यहां संख्या (5) है।
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