1. Objectives:
1.
Evaluate
tangent, cotangent, secant, and
cosecant functions.
2.
Graph these functions.

2.  The
4 remaining trig functions can
be written in terms of sin and cos:

3. 

4. θ is a 2nd quadrant angle and
tan θ = -3/4, find the values of the
other 5 trig functions.
 If

5. and -90 < θ <
90 , find the other 5 trig functions.
 If

6.  Find
the exact value of each (without
your unit circle!)
 tan
225
 csc
0
 sec
(-3π)

7.  Find
the exact value:
 tan π/2
 csc
7π/6

8. θ
-π
-3π/4
-π/2
-π/4
0
π/4
π/2
3π/4
π
tan θ
1
-1

9.  Obtained
1.
2.
3.
4.
from the cosine graph:
sec θ = 1 where cos θ = 1
sec θ = -1 where cos θ = -1
sec θ is undef. where cos θ = 0
|sec θ| gets larger as |cos θ| gets
smaller.