Trigonometry Flashcards
1
Q
Fill in the Unit Circle
A
2
Q
cos(π/6)
A
√3/2
3
Q
sin(π/6)
A
1/2
4
Q
cos(π/4)
A
√2/2
5
Q
sin(π/4)
A
√2/2
6
Q
cos(π/3)
A
1/2
7
Q
sin(π/3)
A
√3/2
8
Q
(x,y) corresponds to what on the Unit Circle?
A
(cos, sin)
9
Q
cos(0)
A
1
10
Q
sin(0)
A
0
11
Q
cos(π/2)
A
0
12
Q
sin(π/2)
A
1
13
Q
cos(2π/3)
A
-1/2
14
Q
sin(2π/3)
A
√3/2
15
Q
cos(3π/4)
A
-√2/2
16
Q
sin(3π/4)
A
√2/2
17
Q
cos(5π/6)
A
-√3/2
18
Q
sin(5π/6)
A
1/2
19
Q
cos(π)
A
-1
20
Q
sin(π)
A
0
21
Q
cos(7π/6)
A
-√3/2
22
Q
sin(7π/6)
A
-1/2
23
Q
cos(5π/4)
A
-√2/2
24
Q
sin(5π/4)
A
-√2/2
25
Q
cos(4π/3)
A
-1/2
26
Q
sin(4π/3)
A
-√3/2
27
Q
cos(3π/2)
A
0
28
Q
sin(3π/2)
A
-1
29
Q
Hand Trick Picture
A
Use left hand. Put down the finger you are trying to calculate. The # of fingers standing up on the left hand side is the numerator for the x-value, the # of fingers standing up on the right hand side is numerator the y-value.
30
Q
A
