Computer Science theory of Computation question. Answer only if you know I have received many wrong questions if I get any wrong question then you will definitely regret it. Let R = {(a, b), (a, c),...

Computer Science theory of Computation question.

Answer only if you

know
I
have
received
many
wrong
questions
if
I get any
wrong
question
then
you
will
definitely regret it.

Let R = {(a, b), (a, c), (c, d), (a, a), (b, a)}. What is R ° R, the composition of R with itself? What is R-1, the inverse of R? Is R, R ° R, or R-1 a function?