# Math Help - Trig basics made easy

1. ## Trig basics made easy

This site Quick Lessons in Trigonometry explains basic trig identities alot easier than most books I have read, and it includes a nice formula sheet to help in learning the formulas needed- hope this helps

2. Waaa look at the identities
the negatives part
how come cos (- alpha) = - cos ( alpha )???

Waaa look at the identities
the negatives part
how come cos (- alpha) = - cos ( alpha )???
It's just wong, cos is an even function and cos(-alpha)=cos(alpha).

RonL

4. problem fixed guys- sorry about the mistake- I haven't done alot of debugging yet- let me know if you find anything else-

5. Originally Posted by mathwhiz14
problem fixed guys- sorry about the mistake- I haven't done alot of debugging yet- let me know if you find anything else-
The first couple of units seem to be okay. However, the links at the bottom of the page all link to the Google ads.

-Dan