यदि \(R=\{(a,b):a,b\in {1,2,3,4},\ ab=4\}\), तो कौन सा ordered pair (R) में है?
If \(R=\{(a,b):a,b\in {1,2,3,4},\ ab=4\}\), which ordered pair is in (R)?
Explanation opens after your attempt
A. ((1,4))
Concept
For ((1,4)), \(1\cdot4=4\), so it is in (R). The other options do not have product (4).
Why this answer is correct
The correct answer is A. ((1,4)). For ((1,4)), \(1\cdot4=4\), so it is in (R). The other options do not have product (4).
Exam Tip
((1,4)) के लिए \(1\cdot4=4\), इसलिए यह (R) में है। दूसरे विकल्पों में गुणनफल (4) नहीं है।
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