यदि \(A=\{x,y,z\}\), तो \(\mathcal{P}(\mathcal{P}(A))\) में कितने एकतत्वीय समुच्चय होंगे?
If \(A=\{x,y,z\}\), then how many singleton sets are there in \(\mathcal{P}(\mathcal{P}(A))\)?
Explanation opens after your attempt
B. (8)
Concept
(\mathcal{P}(A)) has \(2^3=8\) elements. The power set of an (8)-element set has (8) singleton subsets.
Why this answer is correct
The correct answer is B. (8). (\mathcal{P}(A)) has \(2^3=8\) elements. The power set of an (8)-element set has (8) singleton subsets.
Exam Tip
(\mathcal{P}(A)) में \(2^3=8\) तत्व हैं। किसी (8)-तत्वीय समुच्चय के घात समुच्चय में (8) एकल उपसमुच्चय होते हैं।
Login to save your score, XP, coins and progress.
