1
Q
tan =
A
sin/cos
2
Q
cot =
A
cos/sin
3
Q
csc =
A
1/sin
4
Q
sec =
A
1/cos
5
Q
cot =
A
1/tan
6
Q
tan² + 1 =
A
sec²
7
Q
sin² + cos² =
A
1
8
Q
cot² +1 =
A
csc²
9
Q
Sin 30
A
1/2
10
Q
cos 30
A
√3/2
11
Q
sin 45
A
√2/2
12
Q
cos 45
A
√2/2
13
Q
sin 60
A
√3/2
14
Q
cos 60
A
1/2
15
Q
sin (-theta)=
A
-sin theta
16
Q
cos (-theta) =
A
cos theta
17
Q
tan (-theta) =
A
-tan theta
18
Q
csc(-theta) =
A
- csc theta
19
Q
sec (-theta)=
A
sec theta
20
Q
cot(-theta)=
A
-cot theta
