यदि \(A\cap B=\varnothing\), तो (\(A\cup B\)-A) किसके बराबर है?
If \(A\cap B=\varnothing\), then (\(A\cup B\)-A) is equal to what?
Explanation opens after your attempt
A. (B)
Concept
When the sets are disjoint, removing (A) from \(A\cup B\) leaves the whole of (B). Hence the answer is (B).
Why this answer is correct
The correct answer is A. (B). When the sets are disjoint, removing (A) from \(A\cup B\) leaves the whole of (B). Hence the answer is (B).
Exam Tip
असंबद्ध होने पर \(A\cup B\) से (A) हटाने पर पूरा (B) बचता है। इसलिए उत्तर (B) है।
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