Trig Identities

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Trig

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11 Terms

1

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tanθ

sinθ/cosθ

2

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cscθ

1/sinθ

3

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secθ

1/cosθ

4

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cotθ

1/tan θ = cosθ/sinθ

5

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sin² θ + cos² θ

=1

6

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tan²θ +1

sec²θ

7

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1+cot²θ

csc²θ

8

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sin2θ

2sinθcos

9

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cos2θ

cos²θ-sin²θ

10

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sin²θ

1-cos2θ/2

11

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cos²θ

1-cosθ/2