Trig 16 Principal Angles/Sine/Cosine Flashcards
1
Q
Sine π/6
A
1/2
2
Q
Cosine π/6
A
√3/2
3
Q
Sine π/4
A
√2/2
4
Q
Cosine π/4
A
√2/2
5
Q
Sine π/3
A
√3/2
6
Q
Cosine π/3
A
1/2
7
Q
Sine π/2
A
1
8
Q
Cosine π/2
A
0
9
Q
Sine 2π/3
A
√3/2
10
Q
Cosine 2π/3
A
-1/2
11
Q
Sine 3π/4
A
√2/2
12
Q
Cosine 3π/4
A
-√2/2
13
Q
Sine 5π/6
A
1/2
14
Q
Cosine 5π/6
A
-√3/2
15
Q
Sine π
A
0
16
Q
Cosine π
A
-1
17
Q
Sine 7π/6
A
-1/2
18
Q
Cosine 7π/6
A
-√3/2
19
Q
Sine 5π/4
A
-√2/2
