Mathematics A-Level
Quadratic equations in trigonometric functions
What Quadratic equations in trigonometric functions means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Quadratic equations in trigonometric functions
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Reference: Pearson Edexcel
Equations in sin θ, cos θ or tan θ rearranged to standard form, then factorised or solved with the quadratic formula, rejecting roots outside the range.
Topics that use Quadratic equations in trigonometric functions
- Trigonometry (Pearson Edexcel A-Level)
Related terms
- Arcsin, arccos and arctan
- area of a triangle
- Asymptotes
- Domain
- Domains of reciprocal functions
- Equations involving multiples of the unknown angle
- Exact values
- Fundamental trigonometric identities
Using Quadratic equations in trigonometric functions in the exam
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