Download Trigonometric and Circular Functions Section 13-3

Section 13-3:
Definitions of
Trigonometric and
Circular Functions
Chapter 13:
Trigonometric and
Circular Functions
Objectives
Find exact values of the six trigonometric or
circular functions if the angle is a multiple
of 30º or 45º.
Recall:
“SOHCAHTOA” stands for:
Sin=
Cos=
Tan=
What about the reciprocal functions?
Csc=
Sec=
Cot=
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 “30-60-90 Triangle Theorem” says:
The hypotenuse equals:______________
The long leg equals:________________
Quadrant Rules
Remember: All Students Take Calculus!!!
HOMEWORK:
p. 726
#13-75
Every other odd