यदि \(A=\{1,2,4\}\) और \(R=\{(a,b):a=b^2\}\) है, तो कौन-सा ordered pair (R) में है?
If \(A=\{1,2,4\}\) and \(R=\{(a,b):a=b^2\}\), which ordered pair is in (R)?
Explanation opens after your attempt
Correct Answer
B. ( (4,2) )
Concept
Since \(4=2^2\), \((4,2)\in R\). In such questions, check the first and second components in the correct order.
Why this answer is correct
The correct answer is B. ( (4,2) ). Since \(4=2^2\), \((4,2)\in R\). In such questions, check the first and second components in the correct order.
Exam Tip
क्योंकि \(4=2^2\), इसलिए \((4,2)\in R\) है। ऐसे प्रश्नों में ordered pair के पहले और दूसरे घटक को सही स्थान पर रखकर जांचें।
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