A complete A-level lesson on the harmonic form. 12 slides (PowerPoint + PDF) take students from the compound angle formula to finding R and α, maximum and minimum values (including reciprocal “exam twist” questions) and solving equations with a shifted interval. Includes a 3-page exam-style worksheet with 10 graded questions, including a double-angle equation and a tide-height model; full worked solutions; and a teacher guide. Fits Cambridge 9709 Pure Mathematics 3 and A-level Pure.
Tags: harmonic form, R cos, trigonometry, A-level maths, Pure Mathematics 3, 9709, compound angle, trig equations, exam practice
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£3.00