यदि (n(A)=4) और (n(B)=5) है, तो (n\(A\times B\)) कितना होगा?
If (n(A)=4) and (n(B)=5), what is (n\(A\times B\))?
Explanation opens after your attempt
B. (20)
Concept
The number of elements in a Cartesian product is (n(A)n(B)). Here \(4\times 5=20\), so this is the correct answer.
Why this answer is correct
The correct answer is B. (20). The number of elements in a Cartesian product is (n(A)n(B)). Here \(4\times 5=20\), so this is the correct answer.
Exam Tip
कार्तीय गुणन में तत्वों की संख्या (n(A)n(B)) होती है। यहां \(4\times 5=20\), यही सही उत्तर है।
Login to save your score, XP, coins and progress.
