10+ Year Member
5+ Year Member
- May 7, 2004
SMC2UCLA2_ said:I have some questions on DAT acheiver that require you to know:
Double angle formulas for sine and cosine
sin 2t = 2 sin t cos t
cos 2t = cos2 t sin2 t = 2 cos2 t 1 = 1 2 sin2 t
and the questions arent even straight forward. They require you to simplify a more complex expression into one of the answer choices. Is this something that is really necessary? I was thinking the more basic trig identities were sufficient.
geckel said:Trig is what got me on the QR.......I thought it was easy on the practice tests and never bothered to learn it like I should have. Made twenties on practice tests and never studied it........guess that I got what I deserved.
I had about 5-6 questions on it that I was clueless on........didn't ask me anything simple like the practices. I made a 17 on QR.