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
Correct Answer

C. (3)

Step 1

Concept

Here \(A=\{1,2,3\}\), and it has (3) singleton subsets. These subsets become elements of the power set.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

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?

Correct Answer: C. (3). Explanation: \(A=\{1,2,3\}\) है और इसके एक-अवयवी उपसमुच्चय (3) हैं। पावर समुच्चय में ये उपसमुच्चय अवयव बनते हैं। / Here \(A=\{1,2,3\}\), and it has (3) singleton subsets. These subsets become elements of the power set.

Which concept should I revise for this Mathematics MCQ?

Here \(A=\{1,2,3\}\), and it has (3) singleton subsets. These subsets become elements of the power set.

What exam hint can help solve this Mathematics question?

\(A=\{1,2,3\}\) है और इसके एक-अवयवी उपसमुच्चय (3) हैं। पावर समुच्चय में ये उपसमुच्चय अवयव बनते हैं।