trig Flashcards
1
Q
quad 1
A
0-90=2π-π/2
(+cos,+sin)
+tan
2
Q
quad 2
A
90-180=π/2-π
(-cos,+sin)
-tan
3
Q
quad 3
A
180-270=π-3π/2
(-cos, -sin)
-tan
4
Q
quad 4
A
270-360 (0)=3π/2-2π
(+cos, -sin)
-tan
9
Q
sin0
A
0
10
Q
sin30
A
1/2=0.5
11
Q
sin45
A
√2/2=0.7
12
Q
sin60
A
√3/2=0.85
13
Q
sin90
A
1
14
Q
cos0
A
1
15
Q
cos30
A
√3/2=0.85
16
Q
cos60
A
1/2=0.5
17
Q
cos90
A
0
18
Q
cos120
A
-1/2=-.05
19
Q
cos135
A
-√2/2= -0.7
20
Q
cos150
A
-√3/2= -0.85
21
Q
cos180
A
-1
22
Q
tan0 or 360
A
0
23
Q
tan30
A
√3/3=0.58
24
Q
tan45
A
1
25
Q
tan60
A
√3= 1.7
26
Q
tan90
A
undefined
27
Q
tan120
A
-√3= -1.7
28
Q
tan135
A
-1
29
Q
tan150
A
-√3/3= -0.58
30
Q
tan180
A
0
31
Q
0=360
A
2π rad
32
Q
30*
A
π/6 rad
33
Q
45*
A
π/4 rad
34
Q
60*
A
π/3 rad
35
Q
90
A
π/2 rad
36
Q
180*
A
π rad
37
Q
sin120
A
√3/2= 0.85
38
Q
sin135
A
√2/2=0.7
39
Q
sin150
A
1/2=0.5
40
Q
sin180
A
0
