यदि (n(U)=31) है, तो (n\(A\cup A^c\)) कितना होगा?
If (n(U)=31), what is (n\(A\cup A^c\))?
Explanation opens after your attempt
A. (31)
Concept
\(A\cup A^c=U\). Therefore (n\(A\cup A^c\)=31).
Why this answer is correct
The correct answer is A. (31). \(A\cup A^c=U\). Therefore (n\(A\cup A^c\)=31).
Exam Tip
\(A\cup A^c=U\) होता है। इसलिए (n\(A\cup A^c\)=31) होगा।
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