1. Trig Functions and Notation
Trigonometry
Trig Functions and Notation

2. YESTERDAY What is Trigonometry all about?
RIGHT ANGLE TRIANGLES
BASIC TRIG RATIOS (SOHCAHTOA)
ROTATION!
UNIT CIRCLES

3. Exact Values Unit Circle (0, 90, 180, 270, 360, etc.)
Special Triangles (30, 45, 60)

4. Related Angles (CAST) Now we know a LOT of exact values:
0, 90, 180, 270, 360, etc. (plus the equivalent negative rotations)
30, 150, 210, 330, etc.
60, 120, 240, 280, etc.
45, 135, 225, 315, etc.

5. Question
Related Angle
Quadrants
Angle One
Angle Two
Sin A = 0.455

6. Coterminal Angles
Angles that share the same terminal arm with a different rotation are coterminal angles y x

7. Examples 150 -400 2185 Angle Next smallest positive
Next smallest negative
150
-400
2185

11. Radians next…

12. Work today Complete work from yesterday Pg. 200 #1-4, 6-8, 11-13
Handout (Quiz)