यदि \(A\cap B=\varnothing\), (n(A)=45) और (n(B)=37) है, तो (n\(A\cup B\)) क्या होगा?
If \(A\cap B=\varnothing\), (n(A)=45), and (n(B)=37), what is (n\(A\cup B\))?
Explanation opens after your attempt
Correct Answer
D. (82)
Concept
Disjoint sets have common part (0), so (45+37=82). When \(A\cap B=\varnothing\), take the subtracted part as zero.
Why this answer is correct
The correct answer is D. (82). Disjoint sets have common part (0), so (45+37=82). When \(A\cap B=\varnothing\), take the subtracted part as zero.
Exam Tip
असंबद्ध समुच्चयों में साझा भाग (0) होता है, इसलिए (45+37=82)। \(A\cap B=\varnothing\) दिखे तो घटाने वाला भाग शून्य मानें।
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