Solution:
Given, R={(0,0),(1,1),(0,1),(2,2),(1,2)} on set{0,1,2}
The reaction R is reflexive as (0,0),(1,1),(2,2)∈R
The relation R is not symmetric as (0,1)∈R but (1,0)∉R.
The relation R is not transitive as (0,1) and (1,2) ∈R but (0,2)∉R.
Hence, the relation R is only reflexive.
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