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

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

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

When (a=b), the pairs are ( (1,1),(2,2),(3,3),(4,4) ). In identity relation, the number of pairs is (n(A)).

Step 2

Why this answer is correct

The correct answer is C. (4). When (a=b), the pairs are ( (1,1),(2,2),(3,3),(4,4) ). In identity relation, the number of pairs is (n(A)).

Step 3

Exam Tip

(a=b) होने पर pairs ( (1,1),(2,2),(3,3),(4,4) ) हैं। पहचान relation में pairs की संख्या (n(A)) होती है।

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Mathematics Answer, Explanation and Revision Hints

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

Correct Answer: C. (4). Explanation: (a=b) होने पर pairs ( (1,1),(2,2),(3,3),(4,4) ) हैं। पहचान relation में pairs की संख्या (n(A)) होती है। / When (a=b), the pairs are ( (1,1),(2,2),(3,3),(4,4) ). In identity relation, the number of pairs is (n(A)).

Which concept should I revise for this Mathematics MCQ?

When (a=b), the pairs are ( (1,1),(2,2),(3,3),(4,4) ). In identity relation, the number of pairs is (n(A)).

What exam hint can help solve this Mathematics question?

(a=b) होने पर pairs ( (1,1),(2,2),(3,3),(4,4) ) हैं। पहचान relation में pairs की संख्या (n(A)) होती है।