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
Correct Answer

A. ( (2,1) )

Step 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.

Step 2

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.

Step 3

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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Mathematics Answer, Explanation and Revision Hints

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)?

Correct Answer: A. ( (2,1) ). Explanation: (a=b+1) के अनुसार ( (2,1) ) में (2=1+1) है। परीक्षा में पहले और दूसरे घटक की भूमिका न बदलें। / According to (a=b+1), in ( (2,1) ), (2=1+1). In exams, do not interchange the roles of first and second components.

Which concept should I revise for this Mathematics MCQ?

According to (a=b+1), in ( (2,1) ), (2=1+1). In exams, do not interchange the roles of first and second components.

What exam hint can help solve this Mathematics question?

(a=b+1) के अनुसार ( (2,1) ) में (2=1+1) है। परीक्षा में पहले और दूसरे घटक की भूमिका न बदलें।