यदि \(A=\{1,2,3\}\) और \(B=\{4,5\}\) हैं, तो \(A\times B\) में कौन सा युग्म नहीं है?
If \(A=\{1,2,3\}\) and \(B=\{4,5\}\), which pair is not in \(A\times B\)?
Explanation opens after your attempt
Correct Answer
A. ((4,1))
Concept
In ((4,1)), the first element is not from (A) and the second is not from (B). Position checking is necessary in ordered pairs.
Why this answer is correct
The correct answer is A. ((4,1)). In ((4,1)), the first element is not from (A) and the second is not from (B). Position checking is necessary in ordered pairs.
Exam Tip
((4,1)) में पहला अवयव (A) से नहीं और दूसरा (B) से नहीं है। क्रमित युग्म में स्थान की जांच जरूरी है।
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