chapter 8 special trig ratios Flashcards
(18 cards)
1
Q
sin 45
A
sqrt2/2
2
Q
cos 45
A
sqrt2/2
3
Q
tan 45
A
1
4
Q
sin 30
A
1/2
5
Q
cos 30
A
sqrt3/2
6
Q
tan 30
A
sqrt3/3
7
Q
sin 60
A
sqrt3/3
8
Q
cos 60
A
1/2
9
Q
tan 60
A
sqrt3
10
Q
45-45-90 triangle
A
leg 1 = x
leg 2 = x
hypotenuse= x(sqrt2)
11
Q
30-60-90 triangle
A
shorter leg= x
longer leg= x(sqrt3)
hypotenuse= 2x
12
Q
y axis=
A
sin
13
Q
x axis=
A
cos
14
Q
radius =
A
1
15
Q
(cos, sin)
A
you should know that dummy.
16
Q
30 degrees from 0,0 -
A
(sqrt3/2 , 1/2)
17
Q
45 degrees form 0,0 -
A
(sqrt2/2, sqrt2/2)
18
Q
60 degrees from 0,0 -
A
(1/2, sqrt3/2)
