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
Correct Answer

B. (8)

Step 1

Concept

(\mathcal{P}(A)) has \(2^3=8\) elements. The power set of an (8)-element set has (8) singleton subsets.

Step 2

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.

Step 3

Exam Tip

(\mathcal{P}(A)) में \(2^3=8\) तत्व हैं। किसी (8)-तत्वीय समुच्चय के घात समुच्चय में (8) एकल उपसमुच्चय होते हैं।

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Mathematics Answer, Explanation and Revision Hints

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 \(\mathcal{P}(\mathcal{P}(A))\)?

Correct Answer: B. (8). Explanation: (\mathcal{P}(A)) में \(2^3=8\) तत्व हैं। किसी (8)-तत्वीय समुच्चय के घात समुच्चय में (8) एकल उपसमुच्चय होते हैं। / (\mathcal{P}(A)) has \(2^3=8\) elements. The power set of an (8)-element set has (8) singleton subsets.

Which concept should I revise for this Mathematics MCQ?

(\mathcal{P}(A)) has \(2^3=8\) elements. The power set of an (8)-element set has (8) singleton subsets.

What exam hint can help solve this Mathematics question?

(\mathcal{P}(A)) में \(2^3=8\) तत्व हैं। किसी (8)-तत्वीय समुच्चय के घात समुच्चय में (8) एकल उपसमुच्चय होते हैं।