यदि \(A\cap B'=A\), तो कौन सा निष्कर्ष अवश्य सत्य है?
If \(A\cap B'=A\), which conclusion must be true?
Explanation opens after your attempt
Correct Answer
A. \(A\subseteq B'\)
Concept
\(A\cap B'=A\) occurs only when every element of (A) is in (B'). Hence \(A\subseteq B'\).
Why this answer is correct
The correct answer is A. \(A\subseteq B'\). \(A\cap B'=A\) occurs only when every element of (A) is in (B'). Hence \(A\subseteq B'\).
Exam Tip
\(A\cap B'=A\) तभी होता है जब (A) का हर सदस्य (B') में हो। अतः \(A\subseteq B'\) है।
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