यदि \(A\triangle B={7}\) और \(A\subseteq B\), तो (B-A) किसके बराबर है?
If \(A\triangle B={7}\) and \(A\subseteq B\), what is (B-A) equal to?
Explanation opens after your attempt
Correct Answer
A. ({7})
Concept
When \(A\subseteq B\), the symmetric difference is just (B-A). Hence (B-A={7}).
Why this answer is correct
The correct answer is A. ({7}). When \(A\subseteq B\), the symmetric difference is just (B-A). Hence (B-A={7}).
Exam Tip
जब \(A\subseteq B\), तब सममित अंतर (B-A) ही होता है। इसलिए (B-A={7}) है।
Login to save your score, XP, coins and progress.