यदि \(U=\mathbb{R}\), (A=\(-\infty,3\)) और \(B=[1,\infty\)), तो (\(A\cap B\)') क्या होगा?
If \(U=\mathbb{R}\), (A=\(-\infty,3\)) and \(B=[1,\infty\)), what is (\(A\cap B\)')?
Explanation opens after your attempt
Correct Answer
A. \(\(-\infty,1\)\cup[3,\infty))
Concept
\(A\cap B=[1,3\)), so its complement is (\(-\infty,1\)\cup[3,\infty)). First find the correct intersection interval.
Why this answer is correct
The correct answer is A. \(\(-\infty,1\)\cup[3,\infty)). \(A\cap B=[1,3\)), so its complement is (\(-\infty,1\)\cup[3,\infty)). First find the correct intersection interval.
Exam Tip
\(A\cap B=[1,3\)) है, इसलिए उसका पूरक (\(-\infty,1\)\cup[3,\infty)) होगा। पहले प्रतिच्छेद का सही अंतराल निकालें।
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