Integrate[((0.31)/(a)+(9*10^(-5))/(a^(2))+0.69a^(2)+1-0.31-9*10^(-5)-0.69)^(-.5)da,0,a]

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.