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.
(exp(200 * x * i) - 3 * exp(600 * x * i)) / (-3 + exp(400 * x * i)) - 1
(exp(200 * x * i) - 3 * exp(600 * x * i)) / (-3 + exp(400 * x * i)) - 1
Natural Language
Math Input
Extended Keyboard
