0
Q
Cosine
A
Adjacent/hypotenuse
1
Q
Sine
A
Opposite/hypotenuse
2
Q
Tangent
A
Opposite/adjacent
Sin/cos
3
Q
Cosecant
A
Hypotenuse/opposite
Reciprocal of sine
4
Q
Secant
A
Hypotenuse/adjacent
Reciprocal of cosine
5
Q
Cotangent
A
Adjacent/opposite
Reciprocal of tangent
6
Q
Sin0°
A
0
7
Q
Cos0°
A
1
8
Q
Tan0°
A
0
9
Q
Sin30°
A
1/2
Reciprocal of csc30°, 2
(Cos60°)
10
Q
Cos30°
A
√3/2
11
Q
Tan30°
A
√3/3
12
Q
Csc30°
A
2
Recip sin30, 1/2
13
Q
Sec30°
A
2√3/3
Or 2/√3, the recip of cos30, √3/2
14
Q
Cot30
A
√3
Recip tan30, √3/3
(tan60)
15
Q
Sin45°
A
√2/2
Cos45°
16
Q
Cos45°
A
√2/2
Sin45°
17
Q
Tan45°
A
1
18
Q
Csc45°
A
√2
Recip sin45
19
Q
Sec45°
A
√2
Recip of cos45°
20
Q
Cos60°
A
1/2
Sin30°
21
Q
Cos90°
A
0
22
Q
Sin60°
A
√3/2
23
Q
Sin90°
A
1
24
Tan90°
-- no value --
25
Cot0°
-- no value --
26
Cot45°
1
| Recip of tan45°, 1
27
Cot60°
√3/3
| Recip tan60°, √3
28
Cot90°
0
29
Sec0°
1
30
Sec45°
√2
| Recip cos45°, √2/2
31
Sec60°
2
| Recip cos60°, 1/2
32
Sec90°
-- no value --
33
Csc0°
-- no value --
34
Csc30°
2
| Recip sin60°, 1/2
35
Csc60°
2√3/3
| Recip sin60°, √3/2
Trigonometry
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