Hi so I'm doing some SAT practice and I'm quite lost

One of the questions says for all integers x, y, z let (x, y, z)*shaded triangle* be defined by (x, y,z)*shaded triangle*= xsq, ysq, z,sq. Then it gives me (1,2,3)*shadedtriangle*/(3,2,1)*shaded triangle*. I can't figure out what the shaded triangle stands for, what do do with the bracket in the equation. Very lost. Help!

1 answer

No idea what xsq is. x^2?
And what is the triple "xsq, ysq, z,sq" supposed to mean?

I'll use © for the operator.
You say

(x,y,z)© = xsq, ysq, z,sq

I have no idea what that means. Is it x^2+y^2+z^2?

Gotta help me out here.