Trigonometric functions can have several solutions. Sine, cosine and tangent all have different positive or negative values depending on what quadrant they are in. Part of Maths Trigonometric skills ...

Effective strategies include converting to sine and cosine, spotting Pythagorean patterns, factoring, and using conjugates.

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