Trigonometric Identities and Applications · Geometry & Measurement

Compound and Double Angle Formulae

Deriving and applying identities for sums and differences of angles.

Key Questions

  1. 1How does the unit circle provide a geometric proof for compound angle identities?
  2. 2When is it more efficient to use double angle identities over standard forms?
  3. 3How can we use these identities to solve equations that appear unsolvable?

National Curriculum Attainment Targets

A-Level: Mathematics - Trigonometry
Year: Year 13
Subject: Mathematics
Unit: Trigonometric Identities and Applications
Period: Geometry & Measurement

Suggested Methodologies

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