Mathematics A-Level
Solving trigonometric equations using identities
What Solving trigonometric equations using identities means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of Solving trigonometric equations using identities
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Reference: Pearson Edexcel
Replacing terms such as sin²θ with 1 − cos²θ so an equation can be solved, checking whether a value of θ makes a denominator zero.
Topics that use Solving trigonometric equations using identities
- 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 Solving trigonometric equations using identities in the exam
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