यदि \(A\cap B=B\) है, तो कौन-सा निष्कर्ष सही है?
If \(A\cap B=B\), which conclusion is correct?
Explanation opens after your attempt
Correct Answer
A. \(B\subseteq A\)
Concept
The intersection equals (B) only when every element of (B) lies in (A). Hence \(B\subseteq A\).
Why this answer is correct
The correct answer is A. \(B\subseteq A\). The intersection equals (B) only when every element of (B) lies in (A). Hence \(B\subseteq A\).
Exam Tip
प्रतिच्छेद (B) के बराबर तभी होगा जब (B) का हर तत्व (A) में हो। इसलिए \(B\subseteq A\) है।
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