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.
plot 1-2*r-0.5*((1-2*r)^2)*((sqrt(r*(r-4)+2)-r)/(sqrt(r*(r-4)+2)+r)) from 0 to 0.5
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random