यदि \(U=\{1,2,3,4,5,6,7,8,9\}\), \(A=\{1,2,3,4\}\), \(B=\{3,4,5,6\}\) और \(C=\{5,6,7,8\}\), तो (\(A\cup B\cup C\)^{c}) क्या है?
If \(U=\{1,2,3,4,5,6,7,8,9\}\), \(A=\{1,2,3,4\}\), \(B=\{3,4,5,6\}\), and \(C=\{5,6,7,8\}\), what is (\(A\cup B\cup C\)^{c})?
Explanation opens after your attempt
A. ({9})
Concept
\(A\cup B\cup C={1,2,3,4,5,6,7,8}\), so the complement is ({9}). Even with three sets, find the full union first.
Why this answer is correct
The correct answer is A. ({9}). \(A\cup B\cup C={1,2,3,4,5,6,7,8}\), so the complement is ({9}). Even with three sets, find the full union first.
Exam Tip
\(A\cup B\cup C={1,2,3,4,5,6,7,8}\) है, इसलिए पूरक ({9}) है। तीन समुच्चयों में भी पहले पूरा संघ निकालें।
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