यदि \(A=\{1,2\}\), \(B=\{3\}\) और \(C=\{4,5\}\) है, तो (A\times\(B\cup C\)) में कितने अवयव होंगे?
If \(A=\{1,2\}\), \(B=\{3\}\) and \(C=\{4,5\}\), how many elements are in (A\times\(B\cup C\))?
Explanation opens after your attempt
D. (6)
Concept
\(B\cup C={3,4,5}\), so (n(A\times\(B\cup C\))=2\cdot3=6). In exams, simplify the inner set first.
Why this answer is correct
The correct answer is D. (6). \(B\cup C={3,4,5}\), so (n(A\times\(B\cup C\))=2\cdot3=6). In exams, simplify the inner set first.
Exam Tip
\(B\cup C={3,4,5}\), इसलिए (n(A\times\(B\cup C\))=2\cdot3=6)। परीक्षा में पहले अंदर का समुच्चय सरल करें।
Login to save your score, XP, coins and progress.
