# 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))

add a comment

0

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

Asked: **
2012-02-23 13:18:13 -0500
**

Seen: **524 times**

Last updated: **Feb 23 '12**

TypeError: ECL says: Maxima asks: Is y positive, negative, or zero?

I don't know why Sage return 0 for integrate(sin(2*x).abs(),(x,0,pi)) when its value is 2

inverse of a polynomial modulo another polynomial

Use cumulative distribution functions

How to display a function with the values of the variables?

Problems with maxima.function of one variable

How to plot many functions on the same graph

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.