# Trigonometric Identities

> A trigonometric identity is an equation in trigonometric ratios that is always true for every angle where both sides are defined. Grade 11 CAPS builds everything from two fundamental identities: the…

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## Full notes

This is a preview of the Trigonometric Identities notes for Grade 11 Mathematics. Create a free Hlayiso account to read the full notes, practise every question and track your progress.

## More in Trigonometry

- [Reduction Formulae](https://www.hlayiso.com/grade-11/mathematics/notes/trigonometry/reduction-formulae) — Next section
- [All Trigonometry sections](https://www.hlayiso.com/grade-11/mathematics/notes/trigonometry)

## Frequently asked questions

### What will I learn in "Trigonometric Identities"?

This section covers Trigonometric Identities as part of Trigonometry in Grade 11 Mathematics. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Trigonometric Identities", are written against the official CAPS curriculum and ATP for Grade 11 Mathematics.

### What should I study after "Trigonometric Identities"?

Continue with the next section in Trigonometry, or test your understanding with the interactive quiz linked to this section.

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