यदि (A) में (3) तत्व हैं, तो (\mathcal{P}(A)) के कितने तत्व स्वयं (A) के एक-तत्वीय उपसमुच्चय हैं?
If (A) has (3) elements, how many elements of (\mathcal{P}(A)) are singleton subsets of (A)?
Explanation opens after your attempt
A. (3)
Concept
A set with (3) elements has (3) singleton subsets. All of them are elements of (\mathcal{P}(A)).
Why this answer is correct
The correct answer is A. (3). A set with (3) elements has (3) singleton subsets. All of them are elements of (\mathcal{P}(A)).
Exam Tip
तीन तत्वों वाले समुच्चय के एक-तत्वीय उपसमुच्चय (3) होते हैं। ये सभी (\mathcal{P}(A)) के तत्व हैं।
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