यदि \(A\cap B=A\) और \(A\neq \varnothing\) है, तो कौन सा संबंध सही है?
If \(A\cap B=A\) and \(A\neq \varnothing\), which relation is correct?
Explanation opens after your attempt
A. \(A\subseteq B\)
Concept
If the common part is the whole of (A), then (A) lies completely inside (B). Hence \(A\subseteq B\) is correct.
Why this answer is correct
The correct answer is A. \(A\subseteq B\). If the common part is the whole of (A), then (A) lies completely inside (B). Hence \(A\subseteq B\) is correct.
Exam Tip
यदि साझा भाग पूरा (A) है, तो (A) पूरी तरह (B) में है। इसलिए \(A\subseteq B\) सही है।
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