यदि \(A=\{1,{2,3},4\}\) है, तो निम्न में से कौन सा (\mathcal{P}(A)) का सदस्य है?
If \(A=\{1,{2,3},4\}\), which of the following is a member of (\mathcal{P}(A))?
Explanation opens after your attempt
Correct Answer
B. ({{2,3}})
Concept
({2,3}) itself is an element of (A), so ({{2,3}}) is a subset of (A). In exams, treat a nested element as one object.
Why this answer is correct
The correct answer is B. ({{2,3}}). ({2,3}) itself is an element of (A), so ({{2,3}}) is a subset of (A). In exams, treat a nested element as one object.
Exam Tip
({2,3}) स्वयं (A) का तत्व है, इसलिए ({{2,3}}) (A) का subset है। परीक्षा में nested element को एक object मानें।
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