Trigonometry
Trigonometric skills
Trigonometry helps solve problems involving right-angled triangles using the sine, cosine or tangent ratios. SOH CAH TOA is used to help remember the formulae.
Video playlist
The Approximate History of Trigonometry. Video
Praxis the robot and Alan the "human man" attempt to land a plane using their knowledge of trigonometry.
Bitesize maths: Trigonometry. Video
An animated guide to using trigonometry with right-angled triangles.
Indian mathematicians and discoveries in trigonometry. Video
Marcus du Sautoy visits an ancient Indian observatory.
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