यदि \(A=\{1,2,3\}\) और \(R=\{(a,b):a+b=5\}\) है, तो (R) में कितने pairs हैं?

If \(A=\{1,2,3\}\) and \(R=\{(a,b):a+b=5\}\), how many pairs are in (R)?

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Correct Answer

B. (2)

Step 1

Concept

The pairs from the given set are ( (2,3) ) and ( (3,2) ). In ordered pairs, ( (2,3) ) and ( (3,2) ) are different.

Step 2

Why this answer is correct

The correct answer is B. (2). The pairs from the given set are ( (2,3) ) and ( (3,2) ). In ordered pairs, ( (2,3) ) and ( (3,2) ) are different.

Step 3

Exam Tip

दिए गए set से pairs ( (2,3) ) और ( (3,2) ) बनते हैं। ordered pairs में ( (2,3) ) और ( (3,2) ) अलग होते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3\}\) और \(R=\{(a,b):a+b=5\}\) है, तो (R) में कितने pairs हैं? / If \(A=\{1,2,3\}\) and \(R=\{(a,b):a+b=5\}\), how many pairs are in (R)?

Correct Answer: B. (2). Explanation: दिए गए set से pairs ( (2,3) ) और ( (3,2) ) बनते हैं। ordered pairs में ( (2,3) ) और ( (3,2) ) अलग होते हैं। / The pairs from the given set are ( (2,3) ) and ( (3,2) ). In ordered pairs, ( (2,3) ) and ( (3,2) ) are different.

Which concept should I revise for this Mathematics MCQ?

The pairs from the given set are ( (2,3) ) and ( (3,2) ). In ordered pairs, ( (2,3) ) and ( (3,2) ) are different.

What exam hint can help solve this Mathematics question?

दिए गए set से pairs ( (2,3) ) और ( (3,2) ) बनते हैं। ordered pairs में ( (2,3) ) और ( (3,2) ) अलग होते हैं।