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Prerequisites

- A2a – Substituting numerical values into formulae and expressions
- G20b – Trigonometric ratios – sin, cos and tan
- G21a – Exact values of sin, cos and tan for special angles

# Graphs of trigonometric functions

## Desmos graphs

### The sine graph

Here is the graph of*y*=sin(

*x*). Drag the large orange point to move it along the graph. Click on any orange point to toggle a label showing its coordinates.

### The cosine graph

Here is the graph of*y*=cos(

*x*). Drag the large orange point to move it along the graph. Click on any orange point to toggle a label showing its coordinates.

### The tan graph

Here is the graph of*y*=tan(

*x*) with dashed lines showing the

*asymptotes*.

Teacher resources

Links to past exam questions

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In the real world

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