I agree with the majority of the posters above- I wouldn't take a class just on the offchance that trig will show up on your DAT. Math destroyer should give you enough of a background to do well. Notice what I said- on the offchance that you get trig- meaning you may not even get trig questions (I can't remember but I don't think I had any). Now, this isn't to say you won't get trig, because it is quite common and a lot of ppl see trig questions- so study, plan, prepare, but don't freak out. If you still feel unsure about trig read a couple chapters in a math book and do some problems to make sure you know how to manipulate angles, lengths and trig identities. Again, Math destroyer covers a majority of the identities you will need to know as well as question types you could be asked. Good luck!