Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → b
$R=\{(1,1),(1,2),(2,2),(3,3),(4,4),(5,5),(6,6)\}$
R is not symmetric because,
$(1,2)∈R$
But,
$(2,1)∉R$
Correct answer: option 2
The correct answer is Option (2) → b
$R=\{(1,1),(1,2),(2,2),(3,3),(4,4),(5,5),(6,6)\}$
R is not symmetric because,
$(1,2)∈R$
But,
$(2,1)∉R$