यदि \(A\cap B\subseteq C\), तो कौन सा सेट अवश्य खाली है?
If \(A\cap B\subseteq C\), which set must be empty?
Explanation opens after your attempt
Correct Answer
A. (\(A\cap B\)\setminus C)
Concept
If every element of \(A\cap B\) lies in (C), then none of its elements lies outside (C). Hence (\(A\cap B\)\setminus C=\varnothing).
Why this answer is correct
The correct answer is A. (\(A\cap B\)\setminus C). If every element of \(A\cap B\) lies in (C), then none of its elements lies outside (C). Hence (\(A\cap B\)\setminus C=\varnothing).
Exam Tip
यदि \(A\cap B\) का हर तत्व (C) में है, तो (C) के बाहर इसका कोई तत्व नहीं होगा। इसलिए (\(A\cap B\)\setminus C=\varnothing) है।
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