Year 11 (2026) Maths Extension 1 (2026) Further Trigonometry

Trigonometry in Three Dimensions

20 practice questions 2 video lessons Theory + worked examples

Practice 20 questions

Practice questions

Every question with a fully worked solution.

Start practising

Watch 2 video(s)

3D Trig - Video 1 Watch
3D Trig - Video 2 Watch

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Sum and Difference Formulas

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