My test didn't have any unreasonable trig on it. However, that is not to say that you shouldn't understand some of the more difficult trig problems in math destroyer. My advice to you would be to know the unit circle from 0 to 90 degrees and know it well. From there, you can derive values in the other quadrants. Don't forget that All Students Take Classes (1st Quadrant: All trig identies are positive; 2nd Quadrant: Sine (and csc) are positive; 3rd: Tan (and cot) are positive; 4th: Cos (and sec) are positive). Know some of the important identities such as sin^2 + cos^2 = 1 (and any derivation of this), sin2x = 2SinxCosx.....
In short, anything in math destroyer is fair game. Ellipses show up from time to time as do some of the more obscure math destroyer questions. However, if you have a solid understanding of basic trigonometry, you will be well prepared for most of what is likely to show up. Good luck.
