यदि \(A\cap B=\varnothing\), (n(A)=57), (n(B)=46) और (n(U)=125) है, तो (n(\(A\cup B\)')) कितना है?
If \(A\cap B=\varnothing\), (n(A)=57), (n(B)=46) and (n(U)=125), then what is (n(\(A\cup B\)'))?
Explanation opens after your attempt
A. (22)
Concept
The union of disjoint sets is (57+46=103), so the complement is (125-103=22). Disjoint sets have intersection (0).
Why this answer is correct
The correct answer is A. (22). The union of disjoint sets is (57+46=103), so the complement is (125-103=22). Disjoint sets have intersection (0).
Exam Tip
असंबद्ध समुच्चयों का संघ (57+46=103) है, इसलिए पूरक (125-103=22) है। असंबद्ध होने पर प्रतिच्छेद (0) होता है।
Login to save your score, XP, coins and progress.
