यदि \(A=\{1,2,3\}\) और \(R=\{(1,2),(2,1),(2,3)\}\) है, तो (R) symmetric क्यों नहीं है?
If \(A=\{1,2,3\}\) and \(R=\{(1,2),(2,1),(2,3)\}\), why is (R) not symmetric?
Explanation opens after your attempt
A. ( (3,2) ) missing है( (3,2) ) is missing
Concept
Here \((2,3)\in R\), but \((3,2)\notin R\). One missing reverse pair breaks symmetry.
Why this answer is correct
The correct answer is A. ( (3,2) ) missing है / ( (3,2) ) is missing. Here \((2,3)\in R\), but \((3,2)\notin R\). One missing reverse pair breaks symmetry.
Exam Tip
\((2,3)\in R\) है लेकिन \((3,2)\notin R\) है। एक reverse pair missing होने से symmetry टूट जाती है।
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