<p>What kind of trig is there on the math level 2 test?</p>
<p>I took pre-calc, but missed most of the trig material due to switching schools and stuff. </p>
<p>I know basic trig stuff like sine, cosine, radians, inverse functions, etc. but i don't know any of the identities fucntions, sum difference formuals, mutliple-angle and product to sum forumlas, law of cosines, law of cosines, etc.</p>
<p>So how much of that stuff do i really need to know for the test?</p>
<p>thanks.</p>
<p>Yea there is like
Sin double angle, cosine, and sometimes tangent.
However they usually ask stupid questions like this
Find COS^2 - Sin^ 2 / cos2theta.
This is obviously 1. It's not hard stuff.
THey don't ask sum and difference formulas nor vectors (maybe vectors.. not 100% sure). They don't ask half angle formulas either. Be prepared for some parametrization of trig functions (they graph as ellipses iirc.).
KNOW law of C's AND S's for sure. Know sin ^ 2 + cos ^ 2 and the other 2 but its not that hard to know the others after. Also know sin (-x) = -sinx (its odd as well as tangent) and the cos one.
Overall it snot that hard... but you said you missed the identites, etc... you MAY consider taking the math IC if you're not comfortable.</p>
<p>I think i would do better on Math IC, but I'm taking Calculus right now, and that wouldn't look very good on my application.</p>
<p>Is the trig review in the PR math prep book good enough?</p>
<p>There is also some info on 3D. Take a quick look at that.</p>