How to Find the Tangent on a Graph in Excel. The tangent is defined as the single point where a straight line meets a curved surface. The tangent can be determined with a collection of ...

Learn how to find the equation of a circle and use the discriminant to prove for tangency in intersections for Higher Maths.

Learn and revise trigonometric ratios of sine, cosine and tangent and calculate angles and lengths in right-angled triangles with GCSE Bitesize AQA Maths.