यदि \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3\}\) और \(B=\{3,4,5\}\) है, तो (|\mathcal{P}(\(A\cup B\)')|) कितना है?
If \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3\}\), and \(B=\{3,4,5\}\), what is (|\mathcal{P}(\(A\cup B\)')|)?
Explanation opens after your attempt
C. (8)
Concept
\(A\cup B={1,2,3,4,5}\), so the complement has (3) elements. Hence (|\mathcal{P}(\(A\cup B\)')|=23=8).
Why this answer is correct
The correct answer is C. (8). \(A\cup B={1,2,3,4,5}\), so the complement has (3) elements. Hence (|\mathcal{P}(\(A\cup B\)')|=23=8).
Exam Tip
\(A\cup B={1,2,3,4,5}\), इसलिए complement में (3) तत्व हैं। अतः (|\mathcal{P}(\(A\cup B\)')|=23=8)।
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