यदि \(U=\{a,b,c,d,e,f,g,i,j,k\}\), (A'={b,e,i}) और (B'={a,d,j}), तो (\(A\cup B\)') क्या है?
If \(U=\{a,b,c,d,e,f,g,i,j,k\}\), (A'={b,e,i}) and (B'={a,d,j}), what is (\(A\cup B\)')?
Explanation opens after your attempt
Correct Answer
A. \(\varnothing\)
Concept
(\(A\cup B\)'=A'\cap B'), and \({b,e,i}\cap{a,d,j}=\varnothing\). Apply De Morgan directly to the given complements.
Why this answer is correct
The correct answer is A. \(\varnothing\). (\(A\cup B\)'=A'\cap B'), and \({b,e,i}\cap{a,d,j}=\varnothing\). Apply De Morgan directly to the given complements.
Exam Tip
(\(A\cup B\)'=A'\cap B') और \({b,e,i}\cap{a,d,j}=\varnothing\)। दिए गए पूरकों पर सीधे डी मॉर्गन लगाएं।
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