यदि \(A=\{1,2,3\}\) और \(B=\{3,2,1\}\) हैं, तो \(A\times B\) और \(B\times A\) के बारे में कौन सा कथन सही है?
If \(A=\{1,2,3\}\) and \(B=\{3,2,1\}\), which statement about \(A\times B\) and \(B\times A\) is correct?
Explanation opens after your attempt
Correct Answer
A. \(A\times B=B\times A\)
Concept
Order inside a set does not matter, so (A=B), and both products are equal. First check whether the two sets are actually the same.
Why this answer is correct
The correct answer is A. \(A\times B=B\times A\). Order inside a set does not matter, so (A=B), and both products are equal. First check whether the two sets are actually the same.
Exam Tip
समुच्चय में क्रम महत्व नहीं रखता, इसलिए (A=B) है और दोनों गुणनफल समान हैं। पहले देखें कि दोनों समुच्चय वास्तव में समान हैं या नहीं।
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