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