यदि \(A=\{a,b,c\}\), तो (\mathcal{P}(A)) में ऐसे कितने तत्व हैं जो ({a,b}) के अधिसमुच्चय हैं?

If \(A=\{a,b,c\}\), how many elements of (\mathcal{P}(A)) are supersets of ({a,b})?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

({a,b}) must be included and (c) is optional. Thus ({a,b}) and ({a,b,c}), total (2), work.

Step 2

Why this answer is correct

The correct answer is B. (2). ({a,b}) must be included and (c) is optional. Thus ({a,b}) and ({a,b,c}), total (2), work.

Step 3

Exam Tip

({a,b}) को रखना जरूरी है और (c) वैकल्पिक है। इसलिए ({a,b}) और ({a,b,c}), कुल (2) हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{a,b,c\}\), तो (\mathcal{P}(A)) में ऐसे कितने तत्व हैं जो ({a,b}) के अधिसमुच्चय हैं? / If \(A=\{a,b,c\}\), how many elements of (\mathcal{P}(A)) are supersets of ({a,b})?

Correct Answer: B. (2). Explanation: ({a,b}) को रखना जरूरी है और (c) वैकल्पिक है। इसलिए ({a,b}) और ({a,b,c}), कुल (2) हैं। / ({a,b}) must be included and (c) is optional. Thus ({a,b}) and ({a,b,c}), total (2), work.

Which concept should I revise for this Mathematics MCQ?

({a,b}) must be included and (c) is optional. Thus ({a,b}) and ({a,b,c}), total (2), work.

What exam hint can help solve this Mathematics question?

({a,b}) को रखना जरूरी है और (c) वैकल्पिक है। इसलिए ({a,b}) और ({a,b,c}), कुल (2) हैं।