Trigonometry Flashcards
(33 cards)
1
Q
Formula for Arc Length
A
Arc Length = (Theta)(Radius)
2
Q
sin(π - x) =
A
sin x
3
Q
sin(π + x) =
A
-sin x
4
Q
sin(-x)
A
-sin x
5
Q
cos(-x)
A
cos x
6
Q
cos(π-x)
A
-cos x
7
Q
cos(π + x)
A
-cos x
8
Q
cos(π/2 - x)
A
sin x
9
Q
cos(π/2 + x)
A
-sin x
10
Q
sin(π/2 - x)
A
cos x
11
Q
sin(π/2 + x)
A
cos x
12
Q
Period for Sine and Cosine
A
(2π)/|b| or 360°/|b|
13
Q
cos(x - π/2)
A
sin x
14
Q
Period for Tangent
A
π/|b| or 180°/|b|
15
Q
tan 0
A
0
16
Q
tan π/6
A
√3/3
17
Q
sin π/4
A
√2/2
18
Q
cos π/4
A
√2/2
19
Q
tan π/4
A
1
20
Q
tan π/3
A
√3
21
Q
sin π/2
A
1
22
Q
cos π/2
A
0
23
Q
tan π/2
A
und.
24
Q
sin π
A
0
25
cos π
-1
26
tan π
0
27
sin (3π)/2
-1
28
cos (3π)/2
0
29
tan (3π)/2
und.
30
tan(x+π/2)
-(1/tan x)
31
tan(π-x)
-tan x
32
arcsin x (in terms of arccos)
π/2 - arccos x
33
arccos x (in terms of arcsin)
π/2 - arcsin x
