यदि \(U=\{1,2,3,4,5,6\}\), \(A=\{1,2,3\}\) और (B=A') है तो (B') क्या है?
If \(U=\{1,2,3,4,5,6\}\), \(A=\{1,2,3\}\) and (B=A'), what is (B')?
Explanation opens after your attempt
Correct Answer
A. ({1,2,3})
Concept
If (B=A'), then (B'=(A')'=A). So (B'={1,2,3}).
Why this answer is correct
The correct answer is A. ({1,2,3}). If (B=A'), then (B'=(A')'=A). So (B'={1,2,3}).
Exam Tip
यदि (B=A') है तो (B'=(A')'=A) होगा। इसलिए (B'={1,2,3}) है।
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