(\mathcal{P}({1,2})) में कौन सा तत्व नहीं है?
Which is not an element of (\mathcal{P}({1,2}))?
Explanation opens after your attempt
Correct Answer
D. ({3})
Concept
({3}) is not a subset of ({1,2}). So it cannot be an element of the power set.
Why this answer is correct
The correct answer is D. ({3}). ({3}) is not a subset of ({1,2}). So it cannot be an element of the power set.
Exam Tip
({3}) समुच्चय ({1,2}) का उपसमुच्चय नहीं है। इसलिए यह घात समुच्चय का तत्व नहीं हो सकता।
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