यदि \(U={1,2,\ldots,18}\), \(A=\{2,4,6,8,10,12,14,16,18\}\) और \(B=\{3,6,9,12,15,18\}\), तो \(A'\cup B'\) क्या है?
If \(U={1,2,\ldots,18}\), \(A=\{2,4,6,8,10,12,14,16,18\}\), and \(B=\{3,6,9,12,15,18\}\), what is \(A'\cup B'\)?
Explanation opens after your attempt
A. ({1,2,3,4,5,7,8,9,10,11,13,14,15,16,17})
Concept
(A'\cup B'=\(A\cap B\)'). Since \(A\cap B={6,12,18}\), remove these from (U).
Why this answer is correct
The correct answer is A. ({1,2,3,4,5,7,8,9,10,11,13,14,15,16,17}). (A'\cup B'=\(A\cap B\)'). Since \(A\cap B={6,12,18}\), remove these from (U).
Exam Tip
(A'\cup B'=\(A\cap B\)') है। \(A\cap B={6,12,18}\), इसलिए इन्हें (U) से हटाएं।
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