I would really appreciate a walkthrough answer because I've been trying for hours to get their solution with no such luck.
Thanx
The only thing I can think to suggest is just to do it!
Since f(x) is defined as , . Now you should know that and, by the "laws of exponents", . Putting those together, .
Last edited by HallsofIvy; May 27th 2009 at 10:06 AM.
Reason: Fixed latex
Thanks so much HallsofIvy, I had no idea that sin(x + π) = -sin x. Do rules like this come under a particular title so that I can search them up on google and learn them for my exam on monday?
Thanks so much HallsofIvy, I had no idea that sin(x + π) = -sin x. Do rules like this come under a particular title so that I can search them up on google and learn them for my exam on monday?