यदि (A-B=A), तो (A) और (B) के बारे में कौन सा निष्कर्ष सही है?
If (A-B=A), what conclusion about (A) and (B) is correct?
Explanation opens after your attempt
A. \(A\cap B=\emptyset\)
Concept
Removing (B) from (A) still leaves (A), so there was no common element. Hence they are disjoint.
Why this answer is correct
The correct answer is A. \(A\cap B=\emptyset\). Removing (B) from (A) still leaves (A), so there was no common element. Hence they are disjoint.
Exam Tip
(A) से (B) हटाने पर (A) ही बचा, यानी कोई साझा सदस्य नहीं था। इसलिए दोनों असंबद्ध हैं।
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