Need help with this question, The operation * is defined over R by x*y = (x-y)^2. Find 2*3?

2 Answers
Feb 28, 2018

#2**3=1#

Explanation:

We have the definition for a binary operation * on a set #R# as #x**y=(x-y)^2#, and we will assume that #-# and #a^2# are defined as they are over #RR#.

So, #2**3=(2-3)^2=(-1)^2=1# where #2,3inR#

Feb 28, 2018

See explanation.

Explanation:

To find the value you have to substitute #2# for #x# and #3# for #y# in the formula #(x-y)^2#:

#2**3=(2-3)^2=(-1)^2=1#