GCSE; Edexcel; Trigonometry - Edexcel Trigonometric graphs - Higher. The three trigonometric ratios; sine, cosine and tangent are used to calculate angles and lengths in right-angled triangles.

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

To do this, begin by writing your equation. For example: y=x+3 or y=sin(x)+cos(2x). Next, use Lasso tool to select the equation and then, on the Draw tab, click the Math button.. Now, from the ...

The bottom part is a graph of the equation, which, as you can see, is exactly the same. To be fair, this equation cheats a little bit. You may notice that the y-axis of that graph begins at ‘k’.