Well this was basically review. We're going into more depth of it this chapter. Like we've been doing a lot of secant, cosecant and cotangent too. I'm a year above my class in math credits. Most juniors are in geometry, where I took geometry as a sophomore and I'm taking pre-cal(normally senior math) as a junior. There are some people in my grade that are a year a head of me in math and what I'm taking this year, they took last year as sophomores. So they're 2 years ahead of grade level.
This is literally what I just did in math class today.