Video lessons for Edexcel AS Level Maths Trigonometric Ratios, covering 9.1 The Cosine Rule, 9.2 The Sine Rule, 9.3 Areas of Triangles, 9.4 Solving Triangle Problems, 9.5 Graphs of Sine, Cosine and Tangent, and 9.6 Transforming Trigonometric Graphs. 6 lessons matched to the Edexcel AS Level Maths (8MA0) specification, each working through the content and then applying it to exam-style questions in Paper 1 and Paper 2 format. Suitable for AS Level Maths.