यदि \(A=\{1,{2},3\}\) है, तो निम्न में से कौन सा (\mathcal{P}(A)) का सदस्य है?
If \(A=\{1,{2},3\}\), which of the following is a member of (\mathcal{P}(A))?
Explanation opens after your attempt
Correct Answer
B. ({{2}})
Concept
({2}) itself is an element of (A), so ({{2}}) is a subset of (A). In exams, distinguish an element from a singleton set.
Why this answer is correct
The correct answer is B. ({{2}}). ({2}) itself is an element of (A), so ({{2}}) is a subset of (A). In exams, distinguish an element from a singleton set.
Exam Tip
({2}) स्वयं (A) का एक तत्व है, इसलिए ({{2}}) (A) का उपसमुच्चय है। परीक्षा में तत्व और एकल समुच्चय में फर्क करें।
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