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The Unit Circle
We all got 100% on the quiz, but what the hell. trigonometry unit circle
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Trigonometry
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The Unit Circle
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Question
Answer
cos 30°
√3/2
sin 30°
1/2
cos 45°
√2/2
sin 45°
√2/2
cos 60°
1/2
sin 60°
√3/2
cos 90°
0
sin 90°
1
cos 120°
-1/2
sin 120°
√3/2
cos 135°
- √2/2
sin 135°
√2/2
cos 150°
- √3/2
sin 150°
1/2
cos 180°
-1
sin 180°
0
cos 210°
- √3/2
sin 210°
-1/2
cos 225°
- √2/2
sin 225°
- √2/2
cos 240°
-1/2
sin 240°
- √3/2
cos 270°
0
sin 270°
-1
cos 300°
1/2
sin 300°
- √3/2
cos 315°
√2/2
sin 315°
- √2/2
cos 330°
√3/2
sin 330°
-1/2
cos 360°
1
sin 360°
0
tan 30°
√3/3
tan 45°
1
tan 60°
√3
tan 90°
undefined
tan 120°
- √3
tan 135°
-1
tan 150°
- √3/3
tan 180°
0
tan 210°
√3/3
tan 225°
1
tan 240°
√3
tan 270°
undefined
tan 300°
- √3
tan 315°
- 1
tan 330°
- √3/3
tan 360°
0
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by
efn