सार्वत्रिक समुच्चय \(U={x:x\in \mathbb{N},1\le x\le 10}\) और \(A=\{2,4,6,8,10\}\) है। (P(A')) में कितने एकल समुच्चय होंगे?
The universal set is \(U={x:x\in \mathbb{N},1\le x\le 10}\) and \(A=\{2,4,6,8,10\}\). How many singleton sets are in (P(A'))?
Explanation opens after your attempt
B. (5)
Concept
(A'={1,3,5,7,9}), and singleton sets in (P(A')) are (n(A')=5). The number of singleton subsets equals the number of elements.
Why this answer is correct
The correct answer is B. (5). (A'={1,3,5,7,9}), and singleton sets in (P(A')) are (n(A')=5). The number of singleton subsets equals the number of elements.
Exam Tip
(A'={1,3,5,7,9}) और (P(A')) में एकल समुच्चय (n(A')=5) होते हैं। एकल उपसमुच्चयों की संख्या मूल अवयवों जितनी होती है।
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