\(यदि (U={1,2,3,4,5,6,7,8,9,10}) और (A={x:x\in U, x\) सम है\(}) है, तो (\mathcal{P}(A')) में कितने non-empty members हैं\)?
\(If (U={1,2,3,4,5,6,7,8,9,10}) and (A={x:x\in U, x\) is even\(}), how many non-empty members are in (\mathcal{P}(A'))\)?
Explanation opens after your attempt
Correct Answer
B. (31)
Concept
(A') contains odd numbers ({1,3,5,7,9}), so non-empty subsets are \(2^5-1=31\). In exams, subtract (1) to exclude \(\varnothing\).
Why this answer is correct
The correct answer is B. (31). (A') contains odd numbers ({1,3,5,7,9}), so non-empty subsets are \(2^5-1=31\). In exams, subtract (1) to exclude \(\varnothing\).
Exam Tip
(A') में odd numbers ({1,3,5,7,9}) हैं, इसलिए non-empty subsets \(2^5-1=31\) हैं। परीक्षा में \(\varnothing\) हटाने पर (1) घटाएं।
Login to save your score, XP, coins and progress.