समुच्चय \(A=\{1,2,3,4\}\) पर \(R=\{(a,b):a\leq b\}\) में कितने ordered pairs होंगे?

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

Explanation opens after your attempt
Correct Answer

C. (10)

Step 1

Concept

For \(a\leq b\), the number of pairs is (4+3+2+1=10). In exams, include diagonal pairs ( (a,a) ) also.

Step 2

Why this answer is correct

The correct answer is C. (10). For \(a\leq b\), the number of pairs is (4+3+2+1=10). In exams, include diagonal pairs ( (a,a) ) also.

Step 3

Exam Tip

\(a\leq b\) के लिए pairs की संख्या (4+3+2+1=10) है। परीक्षा में diagonal pairs ( (a,a) ) को भी शामिल करें।

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Mathematics Answer, Explanation and Revision Hints

समुच्चय \(A=\{1,2,3,4\}\) पर \(R=\{(a,b):a\leq b\}\) में कितने ordered pairs होंगे? / On \(A=\{1,2,3,4\}\), how many ordered pairs are in \(R=\{(a,b):a\leq b\}\)?

Correct Answer: C. (10). Explanation: \(a\leq b\) के लिए pairs की संख्या (4+3+2+1=10) है। परीक्षा में diagonal pairs ( (a,a) ) को भी शामिल करें। / For \(a\leq b\), the number of pairs is (4+3+2+1=10). In exams, include diagonal pairs ( (a,a) ) also.

Which concept should I revise for this Mathematics MCQ?

For \(a\leq b\), the number of pairs is (4+3+2+1=10). In exams, include diagonal pairs ( (a,a) ) also.

What exam hint can help solve this Mathematics question?

\(a\leq b\) के लिए pairs की संख्या (4+3+2+1=10) है। परीक्षा में diagonal pairs ( (a,a) ) को भी शामिल करें।