यदि \(A=\{1,2\}\) और \(B=\{3,4\}\) है, तो इनमें से कौन सा समुच्चय \(A\times B\) है?
If \(A=\{1,2\}\) and \(B=\{3,4\}\), which set is \(A\times B\)?
Explanation opens after your attempt
Correct Answer
A. ({(1,3),(1,4),(2,3),(2,4)})
Concept
In \(A\times B\), (1,2) from (A) come first and (3,4) from (B) come second. The full list should have \(2\times 2=4\) pairs.
Why this answer is correct
The correct answer is A. ({(1,3),(1,4),(2,3),(2,4)}). In \(A\times B\), (1,2) from (A) come first and (3,4) from (B) come second. The full list should have \(2\times 2=4\) pairs.
Exam Tip
\(A\times B\) में (A) के (1,2) पहले स्थान पर और (B) के (3,4) दूसरे स्थान पर आते हैं। पूरी सूची में \(2\times 2=4\) युग्म होने चाहिए।
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