यदि \(A\cup B=A\) और \(A\setminus B=\varnothing\), तो कौन सा निष्कर्ष सही है?
If \(A\cup B=A\) and \(A\setminus B=\varnothing\), which conclusion is correct?
Explanation opens after your attempt
Correct Answer
A. (A=B)
Concept
The first condition gives \(B\subseteq A\), and the second gives \(A\subseteq B\). Together they imply (A=B).
Why this answer is correct
The correct answer is A. (A=B). The first condition gives \(B\subseteq A\), and the second gives \(A\subseteq B\). Together they imply (A=B).
Exam Tip
पहली शर्त से \(B\subseteq A\) और दूसरी से \(A\subseteq B\) मिलता है। दोनों मिलकर (A=B) देते हैं।
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