यदि \(R=\{(1,5),(2,6),(4,8)\}\) है, तो कौन-सा अवयव (R) के प्रांत में नहीं है?

If \(R=\{(1,5),(2,6),(4,8)\}\), which element is not in the domain of (R)?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

The domain is ({1,2,4}), so (3) is not in it. For domain, look only at the first components.

Step 2

Why this answer is correct

The correct answer is C. (3). The domain is ({1,2,4}), so (3) is not in it. For domain, look only at the first components.

Step 3

Exam Tip

प्रांत ({1,2,4}) है, इसलिए (3) इसमें नहीं है। प्रांत में केवल पहले अवयव देखे जाते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(R=\{(1,5),(2,6),(4,8)\}\) है, तो कौन-सा अवयव (R) के प्रांत में नहीं है? / If \(R=\{(1,5),(2,6),(4,8)\}\), which element is not in the domain of (R)?

Correct Answer: C. (3). Explanation: प्रांत ({1,2,4}) है, इसलिए (3) इसमें नहीं है। प्रांत में केवल पहले अवयव देखे जाते हैं। / The domain is ({1,2,4}), so (3) is not in it. For domain, look only at the first components.

Which concept should I revise for this Mathematics MCQ?

The domain is ({1,2,4}), so (3) is not in it. For domain, look only at the first components.

What exam hint can help solve this Mathematics question?

प्रांत ({1,2,4}) है, इसलिए (3) इसमें नहीं है। प्रांत में केवल पहले अवयव देखे जाते हैं।