Question

if S is a set of even integers :aob=3ab, for all that a,b belongs to S.​

Answer 1

Step-by-step explanation:

Hola!

Let a,b,c € S ,the set of even Integers.

Now,

aob=3ab=3ba=boa

and

(aob)oc=(3ab)oc

=3(3ab)c

=3a(3bc)

=3a(boc)

=ao(boc)

# o is commutative and in Associative.

It's true.

Thank you !

Answer 2

Step-by-step explanation:

Refer to attachment...