किस शर्त में \(A\times B=B\times A\) निश्चित रूप से सत्य होगा?
Under which condition is \(A\times B=B\times A\) definitely true?
Explanation opens after your attempt
Correct Answer
B. (A=B)
Concept
If (A=B), both products contain exactly the same ordered pairs. Equal number of elements alone is not enough.
Why this answer is correct
The correct answer is B. (A=B). If (A=B), both products contain exactly the same ordered pairs. Equal number of elements alone is not enough.
Exam Tip
यदि (A=B), तो दोनों गुणन में वही सभी क्रमित युग्म मिलते हैं। केवल तत्वों की संख्या बराबर होना पर्याप्त नहीं है।
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