यदि \(U=\mathbb{R}\), (A=\(-\infty,-2\)\cup[3,7]) है, तो (A') क्या होगा?
If \(U=\mathbb{R}\) and (A=\(-\infty,-2\)\cup[3,7]), what is (A')?
Explanation opens after your attempt
Correct Answer
A. ([-2,3)\cup\(7,\infty\))
Concept
The point (-2) is not in (A), so it is included in the complement. The points (3) and (7) are in (A), so (3) is excluded and values after (7) are included.
Why this answer is correct
The correct answer is A. ([-2,3)\cup\(7,\infty\)). The point (-2) is not in (A), so it is included in the complement. The points (3) and (7) are in (A), so (3) is excluded and values after (7) are included.
Exam Tip
(-2) समुच्चय (A) में नहीं है, इसलिए पूरक में आएगा। (3) और (7) (A) में हैं, इसलिए पूरक में (3) नहीं और (7) के बाद के मान आएंगे।
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