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
Correct Answer

B. असत्य हैFalse

Step 1

Concept

\((1,4)\in A\times B\), but \((1,4)\notin B\times A\) because \(1\notin B\). One counterexample is enough.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

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 \(A\times B\subseteq B\times A\)?

Correct Answer: B. असत्य है / False. Explanation: \((1,4)\in A\times B\), पर \((1,4)\notin B\times A\) क्योंकि \(1\notin B\)। एक प्रतिउदाहरण पर्याप्त है। / \((1,4)\in A\times B\), but \((1,4)\notin B\times A\) because \(1\notin B\). One counterexample is enough.

Which concept should I revise for this Mathematics MCQ?

\((1,4)\in A\times B\), but \((1,4)\notin B\times A\) because \(1\notin B\). One counterexample is enough.

What exam hint can help solve this Mathematics question?

\((1,4)\in A\times B\), पर \((1,4)\notin B\times A\) क्योंकि \(1\notin B\)। एक प्रतिउदाहरण पर्याप्त है।