Please see this video
YouTube - WildTrig20: Trigonometry with Finite Fields (II)
At around 8:40 it is said that Q(A,B) + Q(A,C) = Q(B,C) so the given points form a right triangle
But shouldn't it be Q(A,B) + Q(B,C) = Q(A,C)?
Furthermore I don't think that's even a right angled triangle since Q(A,B) + Q(B,C) != Q(A,C) [i.e., 5 + 25 != 34]
What is he trying to say?
I have posted it in this forum because this video is trying to explain the basic properties of Finite Fields (7 in this case)
PS: != means "not equal to"
Thanks in Advance