Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
((4x+2)/(3(x^2+x+1))+8sqrt(3)/9arctg(2/sqrt(3)(x+1/2)))'
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
