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.
sqrt((1- \frac{K}{1+\frac{K^2}{4}}) / (1-K)) for K between 0 and 1
sqrt((1- \frac{K}{1+\frac{K^2}{4}}) / (1-K)) for K between 0 and 1
Natural Language
Math Input
Extended Keyboard
