Mathematics A-Level
Sine and cosine rules
What Sine and cosine rules means in Mathematics A-Level, as defined for AQA.
Definition of Sine and cosine rules
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Reference: AQA
Rules that solve any triangle, with the sine rule written as a/sin A = b/sin B = c/sin C and the cosine rule as a² = b² + c² - 2bc cos A.
Topics that use Sine and cosine rules
- E: Trigonometry (AQA A-Level)
Related terms
- Algebraic manipulation
- Amplitude
- Asymptote
- Derivation and manipulation of identities
- Domain and range restrictions for functions
- exact trigonometric values
- Graphical behaviour including asymptotes and ranges
- harmonic form
Using Sine and cosine rules in the exam
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