यदि \(U=\mathbb{R}\), \(A=[1,\infty\)) और (B=\(-\infty,4\)), तो \(A'\cup B'\) क्या है?
If \(U=\mathbb{R}\), \(A=[1,\infty\)), and (B=\(-\infty,4\)), what is \(A'\cup B'\)?
Explanation opens after your attempt
Correct Answer
A. (\(-\infty,1\)\cup[4,\infty))
Concept
(A'=\(-\infty,1\)) and \(B'=[4,\infty\)). Their union is (\(-\infty,1\)\cup[4,\infty)).
Why this answer is correct
The correct answer is A. (\(-\infty,1\)\cup[4,\infty)). (A'=\(-\infty,1\)) and \(B'=[4,\infty\)). Their union is (\(-\infty,1\)\cup[4,\infty)).
Exam Tip
(A'=\(-\infty,1\)) और \(B'=[4,\infty\)) हैं। उनका संघ (\(-\infty,1\)\cup[4,\infty)) है।
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