1
Q
sin 0
(0°)
A
0
2
Q
cos 0
(0°)
A
1
3
Q
tan 0/ (0°)
A
0
4
Q
sin π/6
(30°)
A
1/2
5
Q
cos π/6
(30°)
A
√3/2
6
Q
tan π/6
(30°)
A
√3/3
7
Q
sin π/4
(45°)
A
√2/2
8
Q
cos π/4
(45°)
A
√2/2
9
Q
tan π/4
(45°)
A
1
10
Q
sin π/3
(60°)
A
√3/2
11
Q
cos π/3
(60°)
A
1/2
12
Q
tan π/3
(60°)
A
√3
13
Q
sin π/2
(90°)
A
1
14
Q
cos π/2
(90°)
A
0
15
Q
tan π/2
(90°)
A
Undefined
16
Q
sin π
(180°)
A
0
17
Q
cos π
(180°)
A
-1
18
Q
tan π
(180°)
A
0
19
Q
sin 2π
(360°)
A
0
20
Q
cos 2π
(360°)
A
1
21
Q
tan 2π
(360°)
A
0
22
Q
sin² θ + cos² θ
A
1
23
Q
1 + tan² θ
A
sec² θ
24
Q
1 + cot² θ
A
csc² θ
25
sin(-θ)
-sin θ
26
csc(-θ)
-csc θ
27
cos(-θ)
cos θ
28
sec(-θ)
sec θ
29
tan(-θ)
-tan θ
30
cot(-θ)
-cot θ
31
D&R: Sin
D: (-∞,∞)
R: [-1,1]
32
D&R: cos
D: (-∞,∞)
R: [-1,1]
33
D&R: tan
D: Θ not odd π/2
R: (-∞,∞)
34
D&R: csc
D: Θ not multiple of π
R: (-∞, -1] U [1, ∞]
35
D&R: sec
D: Θ not odd π/2
R: (-∞, -1] U [1, ∞]
36
D&R: cot
D: Θ not multiple of π
R: (-∞,∞)
37
π periodicity
tan
cot
38
even or odd: sin
odd
respect to origin
38
period tan & cot
π
39
even or odd: csc
odd
respect to origin
40
even or odd: cos
even
respect to y
41
even or odd: sec
even
respect to y
42
even or odd: tan
odd
respect to origin
43
even or odd: cot
odd
respect to origin
44
odd fxn
f(-x) = -f(x)
sin (-30) = -sin(30)
45
even fxn
f(-x) = f(x)
cos (-30) = cos (30)
Trig MATH 1620
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