If $A = \{ 1,2,3\}$ and consider the relation
$R = \{ (1,1),(2,2),(3,3),(1,2),(2,3),(1,3)\}$
Then, $R$ is
- (a) reflexive but not symmetric ✓ Correct
- (b) reflexive but not transitive
- (c) symmetric and transitive
- (d) neither symmetric nor transitive
If $A = \{ 1,2,3\}$ and consider the relation
$R = \{ (1,1),(2,2),(3,3),(1,2),(2,3),(1,3)\}$
Then, $R$ is
It is given that,, $A = \{ 1,2,3\}$
and $R = \{ (1,1),(2,2),(3,3),(1,2),(2,3),(1,3)\}$
$(1,1),(2,2),(3,3) \in R$
Hence we can say that, $R$ is reflexive.
(1,2)$\in R$ but (2,1)$\notin R$
Hence we can say that, $R$ is not symmetric.
(1,2)$\in R$ and (2,3)$\in R$
$\Rightarrow$ $(1,3) \in R$
Hence we can say that, $R$ is transitive.
NCERT & Exemplar solution for CBSE Class 12 Mathematics, Relations and Functions. Curated by Sachin Sharma. Free for all students.