Question

the set of teachers in your school which type of set.​

Answer 1

Answer: I didn't fully understand your question, but I hope this helps.

Step-by-step explanation:Let R be the relation give in the question

Let A be any teacher

then (A,A)∈R

since A  and A is the same teacher

so, it is reflexive

Suppose

(A,B)∈R

A and B teach same subject

B and A teach same subject

(B,A)∈R

R is symmetric

But

(A,B)∈R



=(B,C)∈R

so, it is not transitive

therefore R is reflexive and symmetric