AP Pre Calc Trig Vocab

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Last updated 1:39 AM on 5/12/26
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17 Terms

1
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Period formula (sin/cos)

p= 2π/ b

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period formula (tangent)

π/b

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frequency formula

1/p

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csc𝜃

1/sin𝜃

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sec𝜃

1/ cos𝜃

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cot𝜃

1/tan𝜃

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tan𝜃

sin𝜃/cos𝜃

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cot𝜃

cos𝜃/sin𝜃

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odd function

sin(-𝜃)=-sin(𝜃)

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even function

cos(-𝜃)=cos(𝜃)

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cos(⍺+β)=

cos ⍺ cos β - sin ⍺ sin β

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cos(⍺- β)=

cos ⍺ cos β + sin ⍺ sin β

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sin(⍺+β)=

sin⍺ cosβ + cos⍺ sinβ

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sin (⍺-β)=

sin⍺ cosβ - cos⍺ sinβ

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sin(2𝜃)

cos²𝜃 - sin² 𝜃

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cos(2𝜃)=

2 cos² 𝜃-1

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cos(2𝜃)=

1-2sin²𝜃