यदि \(A=\{10,20,30,40\}\), \(B=\{20,50\}\) और \(C=\{30,60\}\) हैं, तो (A-\(B\cup C\)) क्या है?
If \(A=\{10,20,30,40\}\), \(B=\{20,50\}\), and \(C=\{30,60\}\), what is (A-\(B\cup C\))?
Explanation opens after your attempt
A. ( {10,40} )
Concept
\(B\cup C={20,30,50,60}\). Removing (20) and (30) from (A) leaves ({10,40}).
Why this answer is correct
The correct answer is A. ( {10,40} ). \(B\cup C={20,30,50,60}\). Removing (20) and (30) from (A) leaves ({10,40}).
Exam Tip
\(B\cup C={20,30,50,60}\) है। (A) से (20) और (30) हटाने पर ({10,40}) बचता है।
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