Trig Identities and Equations B1 Ch10 Flashcards
1
Q
What can be used to help with trig ratios?
A
A unit circle with its centre at the origin
2
Q
In a unit circle what does CosX equal?
A
The x coordinate of P
3
Q
In a unit circle what does SinX equal?
A
The y coordinate of P
4
Q
In a unit circle what does tanX equal?
A
The gradient of OP
5
Q
Sin30
A
1/2
6
Q
Sin45
A
Route2/2
7
Q
Sin60
A
Route3/2
8
Q
Sin90
A
1
9
Q
Cos30
A
Route3/2
10
Q
Cos45
A
Route2/2
11
Q
Cos60
A
1/2
12
Q
Cos90
A
0
13
Q
Tan30
A
Route3/3
14
Q
Tan45
A
1
15
Q
Tan60
A
Route3
