यदि \(U=\mathbb{R}\), (A=[-2,5)) और (B=(0,7]), तो (\(A\cup B\)') क्या होगा?
If \(U=\mathbb{R}\), (A=[-2,5)) and (B=(0,7]), what is (\(A\cup B\)')?
Explanation opens after your attempt
Correct Answer
A. \(\(-\infty,-2\)\cup\(7,\infty\))
Concept
\(A\cup B=[-2,7]\), so the complement is (\(-\infty,-2\)\cup\(7,\infty\)). First form the union interval correctly.
Why this answer is correct
The correct answer is A. \(\(-\infty,-2\)\cup\(7,\infty\)). \(A\cup B=[-2,7]\), so the complement is (\(-\infty,-2\)\cup\(7,\infty\)). First form the union interval correctly.
Exam Tip
\(A\cup B=[-2,7]\), इसलिए पूरक (\(-\infty,-2\)\cup\(7,\infty\)) है। पहले संघ का अंतराल सही बनाएं।
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