2. Pre calculus Problem of the Day Homework: p. 472 1-17 odds, 25-31 odds, 39-59 odds On the unit circle name all indicated angles by their first positive name, both in degrees and radians.

3. http://www.libraryofmath.com/pages/measure-of-angles/Images/measure-of-angles _gr_62.gif

4. http://en.wikipedia.org/wiki/Unit_circle

5. Unit Circle has the equation We are going to define the 6 trigonometric functions in terms of the unit circle, a point on the circle, P(x, y), and a distance, t, that we move around the circle starting at the point (1, 0)

6. Trigonometric Functions For t equal to any real number and P(x, y) the terminal point determined by t on the unit circle, the six trigonometric functions are as follows: sine cosine tangent sin t = y cos t = x tan t = y/x cosecant secant cotangent csc t = 1/y sec t = 1/x cot t = x/y