# How do you find values for the six trigonometric functions for angles of rotation?

##### 1 Answer

Any angle of rotation

Then, *by definition*, if point

The above are **definitions** of trigonometric functions for any angles. The typical *geometric definition* of trigonometric functions using the right triangles is not general enough, while the above definitions work for all angles and, in case of *acute* angles in the right triangles, are identical to *geometric definition*.

I might suggest to study trigonometry at Unizor *- Trigonometry*. The site has a very detailed explanation of properties of trigonometric functions based on the above definition.