Yeah, I just wanted to clarify (in the interest) that I didn't steal them. I just thought they were interesting, because despite these formulas being hundreds of years old, they aren't really found in modern textbooks (It's not exactly cutting edge stuff here). As you might have deduced from my other posts, I'm quite fond of historical mathematics and Viete was one of the earliest to bridge the gap between ancient and modern methods mathematics.

Also, how did I get 93 votes? I went to get a glass of water and suddenly I'm getting a lot of votes.