Question

Let R be a relation from Q to Q defined by R = {(a, b): a, b e Q and a - bs Z).
(a, b) e R implies that (b. a) E R
Convert 6 radians into degree measurc.​

Answer 1

Answer:

(a,b)∈R⇒a−b∈Z

(b,c)∈R⇒b−c∈Z

⇒(a−c)=(a−b)+(b−c) being sum of two integers is also a integer

⇒(a−c)∈z⇒(a,c)∈R.