यदि \(A\cap B=\varnothing\), (n(A)=31) और (n(B)=44) है, तो (n\(A\cup B\)) कितना होगा?
If \(A\cap B=\varnothing\), (n(A)=31), and (n(B)=44), what is (n\(A\cup B\))?
Explanation opens after your attempt
A. (75)
Concept
For disjoint sets, the common part is (0), so (31+44=75). Disjoint circles do not overlap in a Venn diagram.
Why this answer is correct
The correct answer is A. (75). For disjoint sets, the common part is (0), so (31+44=75). Disjoint circles do not overlap in a Venn diagram.
Exam Tip
असंबद्ध समुच्चयों में साझा भाग (0) होता है, इसलिए (31+44=75)। असंबद्ध वृत्त वेन आरेख में नहीं कटते।
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