यदि \(A=\{1,2,3\}\) है तो कौन सा (\mathcal{P}(A)) का तत्व नहीं है?
If \(A=\{1,2,3\}\), which is not an element of (\mathcal{P}(A))?
Explanation opens after your attempt
D. ({1,4})
Concept
({1,4}) is not a subset of (A) because (4) is not in (A). So it will not be in the power set.
Why this answer is correct
The correct answer is D. ({1,4}). ({1,4}) is not a subset of (A) because (4) is not in (A). So it will not be in the power set.
Exam Tip
({1,4}) (A) का उपसमुच्चय नहीं है क्योंकि (4) (A) में नहीं है। इसलिए यह घात समुच्चय में नहीं आएगा।
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