यदि \(A={x:x\in\mathbb{N},1\le x\le 10}\), \(B=\{1,4,7,10\}\) और \(C=\{2,4,6,8,10\}\) हैं, तो (A\setminus\(B\cup C\)) क्या है?
If \(A={x:x\in\mathbb{N},1\le x\le 10}\), \(B=\{1,4,7,10\}\), and \(C=\{2,4,6,8,10\}\), what is (A\setminus\(B\cup C\))?
Explanation opens after your attempt
A. ( {3,5,9} )
Concept
\(B\cup C={1,2,4,6,7,8,10}\). Removing these from (A) leaves ({3,5,9}).
Why this answer is correct
The correct answer is A. ( {3,5,9} ). \(B\cup C={1,2,4,6,7,8,10}\). Removing these from (A) leaves ({3,5,9}).
Exam Tip
\(B\cup C={1,2,4,6,7,8,10}\) है। इन्हें (A) से हटाने पर ({3,5,9}) बचता है।
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