3 7 sin cos 225° 2 Cos 4 sin (– 5") 3 tan 315° tan 150°
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Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
Question
Transcribed Image Text:The table below shows measures on the unit circle in degrees and in radians.
Complete the table by referring to the unit circle diagram.
(cos 0, sin 0)
90°,승
(글)
(플을)
/3
2 2
2 2
(0,1)↑
-1 /3
2 2
22
(号号)
45°,
2n
120°,
3
3n
135°,-
60°,
2
2
2 2
3 1
(22)
(1,0)
/3
5n
150°, 6
TT
2 '2
30°,
(-1,0)
0°,0
180°,T
11T
330°,-
6.
7n
315°,
7n
210°,-
(올글)
(물금)
(를꼴)
5T
225°,
4
2/2
' 4
240°,
/3
2-2
300°, 3
2'2
3
/3
2' 2
2
2
2
(0,-1)
270°, 2
Transcribed Image Text:3 7
sin
cos 225°
3 T
COS
4
15 T
sin (– B")
tan 315°
tan 150°
sin 300°
sin
6.
cOS T
cos 270°
sin (-5t)
tan
3.
cos (– 210°)
tan 450°
17 T
sin
6.
cos(-–)
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