यदि \(A=\{1,2,{3}\}\) है, तो निम्न में से कौन सा (\mathcal{P}(A)) का तत्व नहीं है?
If \(A=\{1,2,{3}\}\), which of the following is not an element of (\mathcal{P}(A))?
Explanation opens after your attempt
Correct Answer
D. ({1,3})
Concept
(3) itself is not an element of (A); ({3}) is an element. So ({1,3}) is not a subset of (A).
Why this answer is correct
The correct answer is D. ({1,3}). (3) itself is not an element of (A); ({3}) is an element. So ({1,3}) is not a subset of (A).
Exam Tip
(3) स्वयं (A) का तत्व नहीं है, बल्कि ({3}) तत्व है। इसलिए ({1,3}) (A) का उपसमुच्चय नहीं है।
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