This http://www.mathsisfun.com/sine-cosine-tangent.html site works on and breaks it down very well, you should look in a math book (which you should have if you are learning this type of thing) for more complicated uses.
This http://www.mathsisfun.com/sine-cosine-tangent.html site works on and breaks it down very well, you should look in a math book (which you should have if you are learning this type of thing) for more complicated uses.
