<p>EDIT: Can anyone give me tips on finding limits when trigonometric functions come in play? I never understand how they get the convergence of sin and cosine functions. ARGLE! BARGLE!</p>
<p>sine and cosine functions don't converge as x -> infinity, but they may if x approaches a finite number. L'Hopital's rule (if it's necessary to simplify the function) and then Direct Substitution are the easiest ways to solve limits involving trig functions...</p>
<p>I just want to be good at something again. I'm sure your psych book can probably explain most of why I've been acting the way I have been lately. Idk. Meh. Anyway, I look like a cross between a little Asian boy and Lydia from Beetlejuice right now. Life is not good. Someone bless my pencils for me, please.</p>
<p>Just so nobody can say I'm hijacking the thread: use the D&S Marketing book. It is fun. I'm serious. I enjoy going through those tests. Barron's...not so much.(What.the.hell. There is a ****ing symbol they use that represents topics that "are not tested on the exam". So...why are they in the book?)</p>