4.2 & 4.4: Trig Functions and The Unit Circle Objectives: Identify a unit circle and describe its relationship to real #’s Evaluate trig functions using.
January 20 th BOOK 4.2 copyright2009merrydavidson.
4.2 Trigonometric Function: The Unit circle. The Unit Circle A circle with radius of 1 Equation x 2 + y 2 = 1.
