यदि \(A\cap B=\varnothing\), (n(A)=44), (n(B)=52) और (n(U)=130) है, तो (n(\(A\cup B\)')) कितना है?
If \(A\cap B=\varnothing\), (n(A)=44), (n(B)=52) and (n(U)=130), then what is (n(\(A\cup B\)'))?
Explanation opens after your attempt
A. (34)
Concept
For disjoint sets, the union is (44+52=96), so the complement is (130-96=34). Disjoint sets have zero common part.
Why this answer is correct
The correct answer is A. (34). For disjoint sets, the union is (44+52=96), so the complement is (130-96=34). Disjoint sets have zero common part.
Exam Tip
असंबद्ध समुच्चयों में संघ (44+52=96) है, इसलिए पूरक (130-96=34) है। असंबद्ध होने पर साझा भाग शून्य होता है।
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