यदि \(A=\{1,5\}\) और \(B=\{0,2,4\}\) हैं, तो \(A\times B\) में दूसरे घटक (2) वाले कितने युग्म होंगे?
If \(A=\{1,5\}\) and \(B=\{0,2,4\}\), how many pairs in \(A\times B\) have second component (2)?
Explanation opens after your attempt
Correct Answer
B. (2)
Concept
The second component (2) is fixed and the first component can be any of the (2) elements of (A). With a fixed second component, the count is (n(A)).
Why this answer is correct
The correct answer is B. (2). The second component (2) is fixed and the first component can be any of the (2) elements of (A). With a fixed second component, the count is (n(A)).
Exam Tip
दूसरा घटक (2) निश्चित है और पहला घटक (A) के (2) तत्वों में से कोई भी हो सकता है। निश्चित दूसरे घटक पर संख्या (n(A)) होती है।
Login to save your score, XP, coins and progress.