Question

If A is an operation on integers such that a Abra-b-2, for all integers a, b. Then,
7A(-4) =
(a) 11
(b)-9
(c) 9
(d) 1​

Answer 1

Step-by-step explanation:

Now using the given definition of Δ we've,

7Δ(−4)

=7−(−4)−2

=7+4−2

=9.