# Use the properties of inverse functions to find the exact value of the expression

Arctan(tan(5pi/3))

Use the properties of inverse functions to find the exact value of the expression

Arctan(tan(5pi/3))

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```
sage: arctan(tan(pi/5)).simplify()
1/5*pi
```

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Asked: ** 2012-02-23 20:18:13 +0200 **

Seen: **606 times**

Last updated: **Feb 24 '12**

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