I know that the unit circle is soooo Pre-calculus, but it's causing me problems in my calculus class. There'll be questions that expect you to know the coordinates at a certain radian and what not. Are there and tips, tricks, etc, that you all can give me in remembering/learning the unit circle? I mainly need help with sectioning it different ways for different radians that aren't usually found on the circle. Uh...yeah.