Periodicity
What Periodicity means in Mathematics A-Level, as defined for AQA, Pearson Edexcel.
Definitions of Periodicity
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Reference: Pearson Edexcel
Sine and cosine have period 2π, while tangent has period π, and multiples follow from this property.
Sin and cos have period 2π, while tan has period π, so values repeat at related angles.
Topics that use Periodicity
- E: Trigonometry (AQA A-Level)
- Trigonometry (Pearson Edexcel A-Level)
Related terms
- Identity
- period
- principal value
- Radian
- Radian measure
- small-angle approximation
- Trigonometric identities
- Algebraic manipulation
Using Periodicity in the exam
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