यदि \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3,4\}\), और \(B=\{3,4,5,6\}\) है, तो \(\mathcal{P}(A'\cap B')\) कितना है?
If \(U=\{1,2,3,4,5,6,7,8\}\), \(A=\{1,2,3,4\}\), and \(B=\{3,4,5,6\}\), what is \(\mathcal{P}(A'\cap B')\)?
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Correct Answer
B. (4)
Concept
(A'\cap B'=\(A\cup B\)') and \(A\cup B={1,2,3,4,5,6}\). The complement has (2) elements, so \(2^2=4\).
Why this answer is correct
The correct answer is B. (4). (A'\cap B'=\(A\cup B\)') and \(A\cup B={1,2,3,4,5,6}\). The complement has (2) elements, so \(2^2=4\).
Exam Tip
(A'\cap B'=\(A\cup B\)') और \(A\cup B={1,2,3,4,5,6}\) है। complement में (2) तत्व हैं, इसलिए \(2^2=4\)।
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