Cambridge AS & A Level Mathematics
2.3, 3.3Trigonometry
Trigonometry in Cambridge AS & A Level Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic62 practice questions3 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 3.3.1Papers 2 and 3: relate sec, cosec and cot to cos, sin and tan, and use the properties and graphs of all six functions.
- 3.3.2Papers 2 and 3: use identities, including sec²θ ≡ 1 + tan²θ, cosec²θ ≡ 1 + cot²θ, the compound-angle and double-angle formulae and the forms R sin(θ ± α) and R cos(θ ± α), to simplify, evaluate exactly and solve equations.
Lessons
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Compound-angle and double-angle formulae
40 min
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Secant, cosecant and cotangent
45 min
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The harmonic form R sin(θ ± α) and R cos(θ ± α)
45 min
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Sample question
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