यदि \(A=\{2,4,6,8,10\}\) और \(B=\{1,2,3,4\}\) है, तो (B-A) क्या है?
If \(A=\{2,4,6,8,10\}\) and \(B=\{1,2,3,4\}\), what is (B-A)?
Explanation opens after your attempt
A. ( {1,3} )
Concept
In (B-A), common elements with (A) are removed from (B). So (1) and (3) remain.
Why this answer is correct
The correct answer is A. ( {1,3} ). In (B-A), common elements with (A) are removed from (B). So (1) and (3) remain.
Exam Tip
(B-A) में (B) से (A) के सामान्य अवयव हटा दिए जाते हैं। इसलिए (1) और (3) बचते हैं।
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