ok so today in math we are working with sine, cosine, and tangent long story short i asked the teacher how to figure it out with out the use of a calculator and his response was the "you dont" in a way like he was telling me i wouldnt be able to understand. this made me really mad so i looked online but i couldnt find it on the internet either so i was hoping maybe some math wiz here would be able to tell me the answer.

thanks

ChAnMaN