1. Mathematics for IT Lecture 4 trigonometric

2. TRIG REVIEW Trig Function Evaluation : How to use the unit circle to find the value of trig functions at some basic angles Graphs of Trig Functions: The graphs of the trig functions and some nice properties that can be seen from the graphs.

3. TRIG REVIEW (Cont.) Solving Trig Equations: Techniques for solving equations involving trig functions Inverse Trig Functions: The basics of inverse trig functions

4. 1. TRIG FUNCTION EVALUATION relate degrees and radians table

6. Remember how the signs of angles work. If you rotate in a counter clockwise direction the angle is positive if you rotate in a clockwise direction the angle is negative