यदि \(A\cup B=A\), तो सही निष्कर्ष क्या है?
If \(A\cup B=A\), what is the correct conclusion?
Explanation opens after your attempt
A. \(B\subseteq A\)
Concept
If \(A\cup B=A\), (B) adds no new element outside (A). Therefore \(B\subseteq A\).
Why this answer is correct
The correct answer is A. \(B\subseteq A\). If \(A\cup B=A\), (B) adds no new element outside (A). Therefore \(B\subseteq A\).
Exam Tip
यदि \(A\cup B=A\), तो (B) का कोई नया अवयव (A) के बाहर नहीं है। इसलिए \(B\subseteq A\)।
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