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