# How do you find the trigonometric functions of any angle?

##### 1 Answer

Dec 22, 2014

Well, I guess you could use a special representation of the function through a sum of terms, also known as Taylor Series.

It is, basically, what happens in your pocket calculator when you evaluate, for example,

Your calculator does this:

where

In theory you should add infinite terms but, depending upon the accuracy required, you can normally stop at three terms.

In our case we have:

You can find the Taylor series for the other trigonometric functions such as:

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