Do you enjoy brain teasers and puzzles? Then you will love this section. It's all about using the right tools to prove identities and solve problems. It takes a bit of practice before you start to sense which identities will help, but if you put the work in, you will get this right. Remember, if you want to revise what you've done before, visit the Grade 10 (Trig 1 or Trig 2) and Grade 11 (Trig 1 or Trig 2) sections.
We work so much with the abstract that sometimes working with life-like problems can be confusing. The trick with these problems is to turn them into abstract problems. Strip the stories away and focus on what the triangles will look like and what value you need to determine. If you get this right, you will be able to do any 2D or 3D trigonometric problem.