यदि \(A=\{1,2,{3,4}\}\), तो (\mathcal{P}(A)) में कौन सा तत्व अवश्य होगा?
If \(A=\{1,2,{3,4}\}\), which element must be in (\mathcal{P}(A))?
Explanation opens after your attempt
A. ({{3,4}})
Concept
({3,4}) is one element of (A), so its singleton subset ({{3,4}}) is in the power set.
Why this answer is correct
The correct answer is A. ({{3,4}}). ({3,4}) is one element of (A), so its singleton subset ({{3,4}}) is in the power set.
Exam Tip
({3,4}) (A) का एक तत्व है, इसलिए उसका एकल उपसमुच्चय ({{3,4}}) घात समुच्चय में होगा।
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