यदि \(B\subseteq A\) है, तो \(B\setminus A\) क्या होगा?
If \(B\subseteq A\), what is \(B\setminus A\)?
Explanation opens after your attempt
Correct Answer
A. \( \emptyset \)
Concept
If every element of (B) is in (A), nothing remains in (B) that is not in (A). Hence \(B\setminus A=\emptyset\).
Why this answer is correct
The correct answer is A. \( \emptyset \). If every element of (B) is in (A), nothing remains in (B) that is not in (A). Hence \(B\setminus A=\emptyset\).
Exam Tip
यदि (B) का हर अवयव (A) में है, तो (B) में ऐसा कुछ नहीं बचता जो (A) में न हो। इसलिए \(B\setminus A=\emptyset\)।
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