यदि \(A=\{1,2,3,4,5\}\), \(B=\{2,4,6\}\) और \(C=\{1,4,7\}\) हैं, तो (A\setminus \(B\cup C\)) क्या है?
If \(A=\{1,2,3,4,5\}\), \(B=\{2,4,6\}\), and \(C=\{1,4,7\}\), what is (A\setminus \(B\cup C\))?
Explanation opens after your attempt
Correct Answer
A. ( {3,5} )
Concept
\(B\cup C={1,2,4,6,7}\), so removing (1,2,4) from (A) leaves (3,5). In difference, only elements of the first set can remain.
Why this answer is correct
The correct answer is A. ( {3,5} ). \(B\cup C={1,2,4,6,7}\), so removing (1,2,4) from (A) leaves (3,5). In difference, only elements of the first set can remain.
Exam Tip
\(B\cup C={1,2,4,6,7}\), इसलिए (A) से (1,2,4) हटाने पर (3,5) बचते हैं। अंतर में केवल पहले समुच्चय के अवयव बचते हैं।
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