# Graphs of Trigonometric Functions

Graphs of different trigonometric functions (sin, cos, tan, sec, cosec, cot, their squares and inverses) can be graphed separately or together, so that the relationships between them can be seen.
For instance, identities such as cos²x + sin²x = 1 become clear.

###### Author and programmer: Ron Barrow

UK Years 12-13, KS5 AS and A2 Level Core Mathematics, Trigonometry

Instructions below    See also:   Trigonometric Transformations    Trigonometric Equations    Asin(x) + Bcos(x)

## How to Use this Applet

The screen is designed to help you to visualize the principal trigonometric functions sin, cos and tan. You can also see their inverse functions, their reciprocal functions and square functions. Relationships between these functions can be investigated.

To look at a function, check the relevant box on the right of the screen. You can choose which ones to draw and compare.
Play around. I hope you will find this applet helpful in understanding these important functions.