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Sine function - GCSE Maths Definition

Reviewed by: Dan Finlay

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In GCSE Mathematics, the sine function refers to using 'sine' both within, and beyond, right-angled triangles. The graph of the sine function is an oscillating curve that repeats itself every 360°, has a maximum value of 1 and a minimum value of -1. The sine function is useful for modelling repetitive patterns, such as tidal waves or the earth's movement around the sun.

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Dan Finlay

Reviewer: Dan Finlay

Expertise: Maths Subject Lead

Dan graduated from the University of Oxford with a First class degree in mathematics. As well as teaching maths for over 8 years, Dan has marked a range of exams for Edexcel, tutored students and taught A Level Accounting. Dan has a keen interest in statistics and probability and their real-life applications.

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