यदि \(A=\{1,2,3,4,5\}\) और \(B=\{4,5,6,7\}\) हैं, तो (\(A\cup B\)\setminus B) किसके बराबर है?
If \(A=\{1,2,3,4,5\}\) and \(B=\{4,5,6,7\}\), what is (\(A\cup B\)\setminus B) equal to?
Explanation opens after your attempt
Correct Answer
A. ( {1,2,3} )
Concept
Removing all elements of (B) from the union leaves only the non-common elements of (A). So the answer is \(A\setminus B={1,2,3}\).
Why this answer is correct
The correct answer is A. ( {1,2,3} ). Removing all elements of (B) from the union leaves only the non-common elements of (A). So the answer is \(A\setminus B={1,2,3}\).
Exam Tip
संघ से (B) के सभी अवयव हटाने पर केवल (A) के गैर-सामान्य अवयव बचते हैं। इसलिए उत्तर \(A\setminus B={1,2,3}\) है।
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