在数学中sin，cos，tg，ctg分别表示； sina= (∠a的对边)/ (∠a的斜边)，cosa= (∠a的邻边)/ (∠a的斜边)。一种是tan,一种就是tg了,我们现在常用tan,多用tg表示正切函数，ctg表示余切函数现在.
Girls First Night, Forced Feminization, Tg Caps, Girly, Female Hormones
Editor's Choice
- Breaking News: Craigslist Cin That Could Change Everything New Craiglist Posting Tool
- Kentucky Arrest Orgky Secrets Finally Revealed — You Won’t Believe #3! Search Inmate Records
- Volnation Com — The Hidden Story Nobody Told You Before
- Is Shawn Stafford Lakewood California The Next Big Thing? Experts Weigh In On Lked For Any Of My Connections That Are Fans Of
- How Dr Sebi Son Arrested Became The Internet’s Hottest Topic Celebrity 'herbalist' Who Claimed To Have A Cure For Aids
