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first missing pair MCQ Questions for Class 12

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Question 1/1 Medium Mathematics Relations and Functions Transitive relation Class 12 Level 15

यदि \(R=\{(1,2),(2,3),(3,1)\}\), तो इसे संक्रमण बनाने के लिए कौन सी जोड़ी सबसे पहले स्पष्ट रूप से जरूरी है?

If \(R=\{(1,2),(2,3),(3,1)\}\), which pair is first clearly required to make it transitive?

Explanation opens after your attempt
Correct Answer

A. ((1,3))

Step 1

Concept

((1,2)) and ((2,3)) require ((1,3)).

Step 2

Why this answer is correct

This pair is not given, so it is the first clear requirement.

Step 3

Exam Tip

More pairs may be needed later, but the first chain gives ((1,3)). चरण 1: ((1,2)) और ((2,3)) से ((1,3)) जरूरी है। चरण 2: यह जोड़ी दी हुई नहीं है, इसलिए इसे जोड़ना पहली स्पष्ट जरूरत है। चरण 3: ध्यान दें कि आगे और भी जोड़ियां जरूरी हो सकती हैं, पर पहली श्रृंखला से ((1,3)) मिलता है।

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