Well, I recently moved, and because of a new school, i had to take some of their required courses. I was supposed to start trig at my old school. Now I am oing to take it next year, and I want to be ahead, or learn it well enough, so that i can take the test, get the credit for the class, and not have to take it, but take calculus instead. I am currently in the tenth grade. So my question is, is there any real good site, where I can learn trigonometry step by step?