यदि \(A=\{1,2,3,4,5\}\), तो (\mathcal{P}(A)) के कितने तत्वों में (2) और (3) में से कम से कम एक होगा?
If \(A=\{1,2,3,4,5\}\), how many elements of (\mathcal{P}(A)) contain at least one of (2) and (3)?
Explanation opens after your attempt
C. (24)
Concept
There are (32) total subsets. Those containing neither (2) nor (3) are \(2^3=8\), so the answer is (24).
Why this answer is correct
The correct answer is C. (24). There are (32) total subsets. Those containing neither (2) nor (3) are \(2^3=8\), so the answer is (24).
Exam Tip
कुल उपसमुच्चय (32) हैं। (2) और (3) दोनों न लेने वाले \(2^3=8\) हैं, इसलिए उत्तर (24) है।
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