---
title: Goniometrische functies – basis
description: Leer de basis van sinus, cosinus en tangens met driehoeken en de eenheidscirkel.
url: https://astra-ai.co/nl/videos/trigonometrie/trigonometrische-functies/goniometrische-functies-basis/
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type: video-lesson
published: 2026-10-01T19:46:56.259Z
updated: 2026-10-01T19:46:56.259Z
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---

# Goniometrische functies – basis

> Leer de basis van sinus, cosinus, tangens en de eenheidscirkel.

## BASIS VAN GONIOMETRIE

Sinus, cosinus en tangens beschrijven verhoudingen tussen zijden en hoeken van een rechthoekige driehoek.

We bespreken graden, radialen, de eenheidscirkel en het teken van de functies in de verschillende kwadranten.

## CONCLUSIE

Deze basis maakt verdere trigonometrische berekeningen en identiteiten mogelijk.