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.
c/H0 Integrate[1/Sqrt[0.315 a+0.685 a^4]] from a=0 to a=1
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random