यदि \(A=\{1,2,3\}\) और \(B=\{4,5\}\), तो कथन \(A\times B\subseteq B\times A\) के बारे में क्या सही है?
If \(A=\{1,2,3\}\) and \(B=\{4,5\}\), what is true about the statement \(A\times B\subseteq B\times A\)?
Explanation opens after your attempt
B. असत्य हैFalse
Concept
\((1,4)\in A\times B\), but \((1,4)\notin B\times A\) because \(1\notin B\). One counterexample is enough.
Why this answer is correct
The correct answer is B. असत्य है / False. \((1,4)\in A\times B\), but \((1,4)\notin B\times A\) because \(1\notin B\). One counterexample is enough.
Exam Tip
\((1,4)\in A\times B\), पर \((1,4)\notin B\times A\) क्योंकि \(1\notin B\)। एक प्रतिउदाहरण पर्याप्त है।
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