यदि \(A\cap B=B\cap C=C\cap A=\varnothing\), (|A|=9), (|B|=11), (|C|=13), तो \(|A\cup B\cup C|\) क्या है?
If \(A\cap B=B\cap C=C\cap A=\varnothing\), (|A|=9), (|B|=11), (|C|=13), what is \(|A\cup B\cup C|\)?
Explanation opens after your attempt
Correct Answer
A. (33)
Concept
The three sets are pairwise disjoint, so the union has (9+11+13=33) elements. No subtraction is needed for disjoint sets.
Why this answer is correct
The correct answer is A. (33). The three sets are pairwise disjoint, so the union has (9+11+13=33) elements. No subtraction is needed for disjoint sets.
Exam Tip
तीनों सेट परस्पर असंयुक्त हैं, इसलिए संघ की संख्या (9+11+13=33) है। असंयुक्त सेटों में कोई घटाव नहीं होता।
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