यदि \(R=\{(a,b):a,b\in \mathbb{N},a=b+1\}\) है, तो कौन सा ordered pair (R) में होगा?
If \(R=\{(a,b):a,b\in \mathbb{N},a=b+1\}\), which ordered pair belongs to (R)?
Explanation opens after your attempt
A. ( (2,1) )
Concept
According to (a=b+1), in ( (2,1) ), (2=1+1). In exams, do not interchange the roles of first and second components.
Why this answer is correct
The correct answer is A. ( (2,1) ). According to (a=b+1), in ( (2,1) ), (2=1+1). In exams, do not interchange the roles of first and second components.
Exam Tip
(a=b+1) के अनुसार ( (2,1) ) में (2=1+1) है। परीक्षा में पहले और दूसरे घटक की भूमिका न बदलें।
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