Trig functions Flashcards
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
Q
Tan90°
A
– no value –
25
Q
Cot0°
A
– no value –
26
Q
Cot45°
A
1
Recip of tan45°, 1
27
Q
Cot60°
A
√3/3
Recip tan60°, √3
28
Q
Cot90°
A
0
29
Q
Sec0°
A
1
30
Q
Sec45°
A
√2
Recip cos45°, √2/2
31
Q
Sec60°
A
2
Recip cos60°, 1/2
32
Q
Sec90°
A
– no value –
33
Q
Csc0°
A
– no value –
34
Q
Csc30°
A
2
Recip sin60°, 1/2
35
Q
Csc60°
A
2√3/3
Recip sin60°, √3/2
