यदि \(A=\{1,2,3,4\}\) और \(R=\{(a,b):a=b\}\), तो (R) में कितने ordered pairs हैं?

If \(A=\{1,2,3,4\}\) and \(R=\{(a,b):a=b\}\), how many ordered pairs are in (R)?

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

The condition (a=b) gives only diagonal pairs. For (4) elements, there are (4) ordered pairs.

Step 2

Why this answer is correct

The correct answer is B. (4). The condition (a=b) gives only diagonal pairs. For (4) elements, there are (4) ordered pairs.

Step 3

Exam Tip

शर्त (a=b) केवल diagonal युग्म देती है। (4) अवयवों के लिए (4) ordered pairs मिलेंगे।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\) और \(R=\{(a,b):a=b\}\), तो (R) में कितने ordered pairs हैं? / If \(A=\{1,2,3,4\}\) and \(R=\{(a,b):a=b\}\), how many ordered pairs are in (R)?

Correct Answer: B. (4). Explanation: शर्त (a=b) केवल diagonal युग्म देती है। (4) अवयवों के लिए (4) ordered pairs मिलेंगे। / The condition (a=b) gives only diagonal pairs. For (4) elements, there are (4) ordered pairs.

Which concept should I revise for this Mathematics MCQ?

The condition (a=b) gives only diagonal pairs. For (4) elements, there are (4) ordered pairs.

What exam hint can help solve this Mathematics question?

शर्त (a=b) केवल diagonal युग्म देती है। (4) अवयवों के लिए (4) ordered pairs मिलेंगे।