यदि \(A=\{3,5,7\}\) और \(B=\{2,4,6\}\) हैं, तो \(A\times B\) में वह क्रमित युग्म कौन सा है जिसका पहला अवयव (7) और दूसरा अवयव (4) है?
If \(A=\{3,5,7\}\) and \(B=\{2,4,6\}\), which ordered pair in \(A\times B\) has first component (7) and second component (4)?
Explanation opens after your attempt
Correct Answer
A. ((7,4))
Concept
In \(A\times B\), the first component comes from (A) and the second from (B). Changing positions is a common mistake.
Why this answer is correct
The correct answer is A. ((7,4)). In \(A\times B\), the first component comes from (A) and the second from (B). Changing positions is a common mistake.
Exam Tip
\(A\times B\) में पहला अवयव (A) से और दूसरा (B) से आता है। क्रमित युग्म में स्थान बदलना गलती कराता है।
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