# arctan(cot(2pi/3))

find an exact value for arctan(cot 2pi/3)

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arctan(cot(2pi/3))

find an exact value for arctan(cot 2pi/3)

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0

```
sage: simplify(arctan(cot (2*pi/3)))
```

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Asked: ** 2013-03-30 13:54:38 +0200 **

Seen: **449 times**

Last updated: **Mar 30 '13**

Trigonometric Equation Solving: Not Terminating

Sage cannot simplify arccos, but can simplify arcsin?

Calculus graphing. Urgent help appreciated! [closed]

Simplify produces an incorrect result.

Sage fails to evaluate this expression.

Solving a trigonometric equation

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