यदि \(A={\emptyset}\) है तो (\mathcal{P}(A)) में कितने तत्व होंगे?
If \(A={\emptyset}\), how many elements will (\mathcal{P}(A)) have?
Explanation opens after your attempt
Correct Answer
B. (2)
Concept
(A) has one element which is \(\emptyset\). Hence it has \(2^1=2\) subsets.
Why this answer is correct
The correct answer is B. (2). (A) has one element which is \(\emptyset\). Hence it has \(2^1=2\) subsets.
Exam Tip
(A) में एक तत्व है जो \(\emptyset\) है। इसलिए उपसमुच्चय \(2^1=2\) होंगे।
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