यदि (n\(A\cap B\)=n(A)), तो कौन सा संबंध अवश्य सत्य है?
If (n\(A\cap B\)=n(A)), which relation must be true?
Explanation opens after your attempt
Correct Answer
A. \(A\subseteq B\)
Concept
All of (A) is appearing in the intersection, so every element of (A) is also in (B). Hence \(A\subseteq B\).
Why this answer is correct
The correct answer is A. \(A\subseteq B\). All of (A) is appearing in the intersection, so every element of (A) is also in (B). Hence \(A\subseteq B\).
Exam Tip
पूरा (A) प्रतिच्छेद में आ रहा है, इसलिए (A) का हर तत्व (B) में भी है। अतः \(A\subseteq B\)।
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