यदि \(A=\{1,2\}\) और \(B=\{3,1\}\) है, तो क्या \((3,1)\in A\times B\) है?
If \(A=\{1,2\}\) and \(B=\{3,1\}\), is \((3,1)\in A\times B\)?
Explanation opens after your attempt
Correct Answer
B. नहीं, क्योंकि \(3\notin A\)No, because \(3\notin A\)
Concept
The first component of ((3,1)) is (3), but \(3\notin A\). A correct second component alone does not make the whole pair correct.
Why this answer is correct
The correct answer is B. नहीं, क्योंकि \(3\notin A\) / No, because \(3\notin A\). The first component of ((3,1)) is (3), but \(3\notin A\). A correct second component alone does not make the whole pair correct.
Exam Tip
((3,1)) का पहला घटक (3) है, लेकिन \(3\notin A\)। दूसरे घटक के सही होने से पूरा युग्म सही नहीं हो जाता।
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