Double Angle Formulae and Half-Angle Identities
Applying double angle identities and exploring their use in deriving half-angle identities and solving equations.
Key Questions
- Differentiate between the various forms of the double angle formula for cosine.
- Explain how double angle identities can be used to simplify expressions involving powers of sine and cosine.
- Predict the outcome of substituting a double angle identity into a complex trigonometric equation.
National Curriculum Attainment Targets
Suggested Methodologies
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