यदि \(A\cap B=\varnothing\), (n(A)=33) और (n(B)=41) है, तो (n\(A\cup B\)) क्या होगा?
If \(A\cap B=\varnothing\), (n(A)=33), and (n(B)=41), what is (n\(A\cup B\))?
Explanation opens after your attempt
A. (74)
Concept
Disjoint sets have common part (0), so (33+41=74). When \(A\cap B=\varnothing\), the subtracted part is zero.
Why this answer is correct
The correct answer is A. (74). Disjoint sets have common part (0), so (33+41=74). When \(A\cap B=\varnothing\), the subtracted part is zero.
Exam Tip
असंबद्ध समुच्चयों में साझा भाग (0) होता है, इसलिए (33+41=74)। \(A\cap B=\varnothing\) दिखे तो घटाने वाला भाग शून्य है।
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