trig exact values 2016 revised.notebook
2/9/16
February 09, 2016
Finding exact values of special angles
45
30
60
30
45
45
60
sin
cos
tan
1
trig exact values 2016 revised.notebook
February 09, 2016
Quadrantal Angles
90
Every point on the unit circle is (cos , sin (0,1)
)
180
(­1,0)
(1,0)
0,360
(0,­1)
0
90
270
180 270 360
sin
cos
tan
2
trig exact values 2016 revised.notebook
February 09, 2016
Problem Set:
Find the exact values of the following: 1) sin 60 2) cos 30 + sin 45
3) tan2 30 4) sin2 45 3
trig exact values 2016 revised.notebook
February 09, 2016
5) sec 30 6) cot 60
7) sin 30 + csc 30 + tan 30
8) (sin 45) (sec 60) (tan 45)
4
trig exact values 2016 revised.notebook
February 09, 2016
9) If f(x) = 2sin x + cos x evaluate f(60)
10) IF g(x) = 3cos x sec x, evaluate g(45) 5