FALSE
You should know the very basics of Trig, but don't spend an extensive amount of time studying obscure Trig.
The Trig topics that you should focus on are:
- SOH-CAH-TOA
- how to solve right triangles
- the unit circle
- tan θ = sin θ / cos θ
- sin2 θ + cos2 θ = 1
- what sine, cosine, and tangent graphs look like