यदि \(A-B=\varnothing\) और \(B-A\ne\varnothing\) है, तो सही निष्कर्ष कौन-सा है?
If \(A-B=\varnothing\) and \(B-A\ne\varnothing\), which conclusion is correct?
Explanation opens after your attempt
Correct Answer
A. \(A\subset B\)
Concept
\(A-B=\varnothing\) means every element of (A) lies in (B). \(B-A\ne\varnothing\) means (B) has at least one extra element.
Why this answer is correct
The correct answer is A. \(A\subset B\). \(A-B=\varnothing\) means every element of (A) lies in (B). \(B-A\ne\varnothing\) means (B) has at least one extra element.
Exam Tip
\(A-B=\varnothing\) बताता है कि (A) का हर तत्व (B) में है। \(B-A\ne\varnothing\) बताता है कि (B) में कुछ अतिरिक्त तत्व हैं।
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