यदि \(A \cap B=\varnothing\), तो (B) के बारे में कौन सा कथन अवश्य सत्य है?
If \(A \cap B=\varnothing\), which statement about (B) must be true?
Explanation opens after your attempt
Correct Answer
A. \(B \subseteq A'\)
Concept
If no element of (B) lies in (A), every element of (B) lies in (A'). Hence \(B \subseteq A'\) must be true.
Why this answer is correct
The correct answer is A. \(B \subseteq A'\). If no element of (B) lies in (A), every element of (B) lies in (A'). Hence \(B \subseteq A'\) must be true.
Exam Tip
यदि (B) का कोई सदस्य (A) में नहीं है, तो हर सदस्य (A') में होगा। इसलिए \(B \subseteq A'\) अवश्य सत्य है।
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