Trigonometric graphs

The sine and cosine graphs

The sine and cosine graphs are very similar as they both:

• have the same curve only shifted along the x-axis
• have an amplitude (half the distance between the maximum and minimum values) of 1
• have a period (size of one wave) of 360˚

The tangent curve

The tangent graph:

• has an amplitude which is undefined as the curve tends to infinity both upwards and downwards
• has a period of 180˚