Imortant Reference Angles

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9 Terms

1
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Sine (y) 30

1/2

2
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Sine (y) 45

sqrt 2 / 2

3
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Sine (y) 60

sqrt 3 / 2

4
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Cosine (x) 30

sqrt 3 / 2

5
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Cosine (x) 45

sqrt 2 / 2

6
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Cosine (x) 60

½

7
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Tangent 30

sqrt 3 / 3

8
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Tangent 45

1

9
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Tangent 60

sqrt 3