यदि \(A\cap B=U\), तो \(A'\cup B'\) क्या होगा?
If \(A\cap B=U\), what is \(A'\cup B'\)?
Explanation opens after your attempt
Correct Answer
A. \(\varnothing\)
Concept
If \(A\cap B=U\), then (A=U) and (B=U). By De Morgan, (A'\cup B'=\(A\cap B\)'=U'=\varnothing).
Why this answer is correct
The correct answer is A. \(\varnothing\). If \(A\cap B=U\), then (A=U) and (B=U). By De Morgan, (A'\cup B'=\(A\cap B\)'=U'=\varnothing).
Exam Tip
\(A\cap B=U\) होने पर (A=U) और (B=U) होंगे। डी मॉर्गन से (A'\cup B'=\(A\cap B\)'=U'=\varnothing)।
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