Mathematics A-Level
Equations involving multiples of the unknown angle
What Equations involving multiples of the unknown angle means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Equations involving multiples of the unknown angle
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Reference: Pearson Edexcel
Equations such as sin 2θ = k or cos(3θ + 30°) = k, solved by finding the general solution for the multiple angle, then dividing or adjusting to find θ.
Topics that use Equations involving multiples of the unknown angle
- Trigonometry (Pearson Edexcel A-Level)
Related terms
- Arcsin, arccos and arctan
- area of a triangle
- Asymptotes
- Domain
- Domains of reciprocal functions
- Exact values
- Fundamental trigonometric identities
- Geometrical proofs
Using Equations involving multiples of the unknown angle in the exam
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