वास्तविक संख्याओं पर (aRb) तब और केवल तब जब (a-b) अपरिमेय हो। सही कथन कौन सा है?
On real numbers, (aRb) if and only if (a-b) is irrational. Which statement is correct?
Explanation opens after your attempt
A. सममित पर न प्रतिवर्ती न संक्रामीSymmetric but neither reflexive nor transitive
Concept
If (a-b) is irrational, then (b-a) is also irrational. But (a-a=0) is not irrational and the sum of irrational differences can be rational.
Why this answer is correct
The correct answer is A. सममित पर न प्रतिवर्ती न संक्रामी / Symmetric but neither reflexive nor transitive. If (a-b) is irrational, then (b-a) is also irrational. But (a-a=0) is not irrational and the sum of irrational differences can be rational.
Exam Tip
यदि (a-b) अपरिमेय है तो (b-a) भी अपरिमेय है। लेकिन (a-a=0) अपरिमेय नहीं और अपरिमेय अंतरों का योग परिमेय हो सकता है।
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