यदि \(A\setminus B=A\) है, तो कौन-सा निष्कर्ष निश्चित है?
If \(A\setminus B=A\), which conclusion is definite?
Explanation opens after your attempt
A. \(A\cap B=\varnothing\)
Concept
Removing (B) from (A) changes nothing, so (A) and (B) have no common element. Difference identities reveal disjointness.
Why this answer is correct
The correct answer is A. \(A\cap B=\varnothing\). Removing (B) from (A) changes nothing, so (A) and (B) have no common element. Difference identities reveal disjointness.
Exam Tip
(B) हटाने पर (A) नहीं बदला, इसलिए (A) और (B) में कोई साझा तत्व नहीं है। अंतर पहचान से असंबद्धता समझें।
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