Students learn how to use the t-formulae to prove trigonometric identities.
Later, as learning progresses, they use the t-formulae to prove identities with secant, cosecant and cotangent.
How to teach problem solving with angles in polygons through scaffolding.
Explore geometric series in our A-Level Maths tutorial. Perfect for students/teachers, with resources to download at mr-mathematics.com.
Edexcel A-Level Mathematics Year 2: Pure 2: Algebraic Methods