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Students learn how to derive the compound and double-angle formulae through a geometrical proof. They use these formulae to solve quadratic equations in sin, cos and tan of an unknown angle and construct proofs involving trigonometric identities. Later, as learning progresses, they use expressions such as acosθ + bsinθ = Rcos(θ + β) to model real-life situations.

March 12, 2024

Planes of Symmetry in 3D Shapes for Key Stage 3/GCSE students.

Use isometric paper for hands-on learning and enhanced understanding.

March 8, 2024

Master GCSE Math: Get key SOH-CAH-TOA tips, solve triangles accurately, and tackle area tasks. Ideal for students targeting grades 4-5.

March 7, 2024

Explore Regions in the Complex Plane with A-Level Further Maths: inequalities, Argand diagrams, and geometric interpretations.