1. Chapter 13: Trigonometric and Circular Functions
Section 13-3:
Definitions of Trigonometric and Circular Functions
Chapter 13: Trigonometric and Circular Functions

2. Objectives
Find exact values of the six trigonometric or circular functions if the angle is a multiple of 30º or 45º.

3. Recall: “SOHCAHTOA” stands for: What about the reciprocal functions?
Sin=
Cos=
Tan=
What about the reciprocal functions?
Csc=
Sec=
Cot=

4. From Geometry :D The “Isosceles Right Triangle Theorem” says:
The two legs of an isosceles right triangle are congruent.
The hypotenuse of an isosceles right triangle is equal to:_________________
The “ Triangle Theorem” says:
The hypotenuse equals:______________
The long leg equals:________________

5. Quadrant Rules
Remember: All Students Take Calculus!!!

6. HOMEWORK:
p. 726
#13-75
Every other odd