I don't know what sin and cos is OR how to use it. Please help me!

# How do you use sin and cos

Sin and cos (along with tangent: sin ÷ cos) are the 3 main parts in trigonometry. There are lots of tutorials about them online, and Kiwicute2015 also has a tutorial!

**AwesomeGal1b**#5

Alish talked about this before in another topic. Here's the post; I don't think anyone should go searching and searching..