यदि (n(\mathcal{P}(A))=8) है तो (n(A)) कितना होगा?
If (n(\mathcal{P}(A))=8) then what is (n(A))?
Explanation opens after your attempt
B. (3)
Concept
Since \(8=2^3\), (n(A)=3). Match the power set size with \(2^n\) to find the original number.
Why this answer is correct
The correct answer is B. (3). Since \(8=2^3\), (n(A)=3). Match the power set size with \(2^n\) to find the original number.
Exam Tip
क्योंकि \(8=2^3\), इसलिए (n(A)=3) है। घात समुच्चय से मूल संख्या निकालते समय \(2^n\) मिलाएं।
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