What were the sac questions like specifically, like what did they most focus on, argand diagrams and drawing loci or?
For part one of the SAC (tech-free),
The questions required us to find the value of z1 and z2 and beta and alpha (the unknowns) in the equation:
|z - z1| + beta|z - z2| = alpha.
There was a table of given values that looked something like this:
z1: 1 + i, 1 - i, -1 + i, -1 - i
z2: " "
beta: 0, 1, 2, 3
alpha: 0, 1, 2, 3
And we'd have to choose which value of each unknown would satisfy the conditions posed in each question. A condition would be something like: "radius = 2 and centre = (-1, 1)"
It was nothing I'd seen before in either of the maths quest and essentials textbooks or the tssm complex numbers review worksheet I did.