यदि \(A=\{5,6,7\}\) और \(B=\{6,7,8,9\}\) है, तो (A\cap\(A\cup B\)) क्या है?
If \(A=\{5,6,7\}\) and \(B=\{6,7,8,9\}\), what is (A\cap\(A\cup B\))?
Explanation opens after your attempt
A. ( {5,6,7} )
Concept
\(A\cup B\) contains all elements of (A), so the intersection is (A) itself. This is an example of the absorption law.
Why this answer is correct
The correct answer is A. ( {5,6,7} ). \(A\cup B\) contains all elements of (A), so the intersection is (A) itself. This is an example of the absorption law.
Exam Tip
\(A\cup B\) में (A) के सभी अवयव हैं, इसलिए प्रतिच्छेद (A) ही होगा। यह अवशोषण नियम का उदाहरण है।
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