यदि (n(U)=40) और (n(A)=18), तो (n\(A^{c}\)) क्या है?
If (n(U)=40) and (n(A)=18), what is (n\(A^{c}\))?
Explanation opens after your attempt
B. (22)
Concept
(n\(A^{c}\)=n(U)-n(A)=40-18=22). For complement cardinality, subtract the given set from the total.
Why this answer is correct
The correct answer is B. (22). (n\(A^{c}\)=n(U)-n(A)=40-18=22). For complement cardinality, subtract the given set from the total.
Exam Tip
(n\(A^{c}\)=n(U)-n(A)=40-18=22)। अवयव संख्या में पूरक के लिए कुल में से दिए गए समुच्चय को घटाएं।
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