यदि \(A={x:x\in\mathbb{N}\) और \(x\leq 3}\) तो (P(A)) में कितने ऐसे अवयव हैं जो एक-अवयवी समुच्चय हैं?
If \(A={x:x\in\mathbb{N}\) and \(x\leq 3}\), how many elements of (P(A)) are singleton sets?
Explanation opens after your attempt
C. (3)
Concept
Here \(A=\{1,2,3\}\), and it has (3) singleton subsets. These subsets become elements of the power set.
Why this answer is correct
The correct answer is C. (3). Here \(A=\{1,2,3\}\), and it has (3) singleton subsets. These subsets become elements of the power set.
Exam Tip
\(A=\{1,2,3\}\) है और इसके एक-अवयवी उपसमुच्चय (3) हैं। पावर समुच्चय में ये उपसमुच्चय अवयव बनते हैं।
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