Further Trigonometry
Planned Extension trigonometry support, including identities, equations, and exact-value fluency.
Active lessons
6
Status
Active
Lesson flow
Learn -> Guided Practice -> Independent Practice -> Mastery Quiz
How to use this unit
- Start from lesson 1 and move through the pathway in order.
- Use guided practice before attempting independent practice.
- Mastery quizzes check whether the skill is ready for review or extension.
Unit pathway
Lesson pathway
6 of 6 active
Lesson 1
Reciprocal Trigonometric Functions
Define secant, cosecant and cotangent, and evaluate exact reciprocal trigonometric values.
Lesson 2
Compound Angle Formulae
Apply compound angle formulae for sine, cosine, and tangent.
Lesson 3
Double Angle Formulae
Use double angle formulae for sine, cosine, and tangent, including alternate cosine forms.
Lesson 4
t-Formula and Subsidiary Angle Method
Use the t-formula and subsidiary angle method to rewrite trigonometric expressions.
Lesson 5
Product-to-Sum Identities
Use product-to-sum, sum-to-product, and identity reasoning in further trigonometry.
Lesson 6
Solving Trig Equations with Double and Compound Angles
Solve equations such as sin 2θ = sin θ and cos 2θ + cos θ = 0 using double angle and compound angle substitutions.
Part of the Online Learning Package
Unit previews stay public, while individual lessons require active online learning access.