यदि \(A\subseteq B\), (n(A)=8) और (B) में (A) से बाहर कोई अवयव नहीं है तो कौन सा निष्कर्ष निश्चित है?
If \(A\subseteq B\), (n(A)=8), and (B) has no element outside (A), which conclusion is certain?
Explanation opens after your attempt
A. (A=B)
Concept
Since \(A\subseteq B\) and (B) has no new element outside (A), both have the same elements. Thinking about inclusion from both sides helps prove equality.
Why this answer is correct
The correct answer is A. (A=B). Since \(A\subseteq B\) and (B) has no new element outside (A), both have the same elements. Thinking about inclusion from both sides helps prove equality.
Exam Tip
\(A\subseteq B\) है और (B) में (A) के अलावा कोई नया अवयव नहीं है इसलिए दोनों में वही अवयव हैं। बराबरी सिद्ध करने में दोनों ओर सम्मिलन की सोच उपयोगी है।
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