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What’s this? Someone help

What’s this? Someone help-example-1
User Sam Oliver
by
5.1k points

1 Answer

7 votes

Answer:

C

Explanation:

Using the given definition

x δ y =
(x+y)/(x-y) , then

a δ (a - b)

=
(a+a-b)/(a-(a-b))

=
(2a-b)/(a-a+b)

=
(2a-b)/(b) → C

User Sulejman
by
5.6k points