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(a+b+1/(a*b)+3/(1/a+1/b+a*b),a=0.4..3,b=0.4..3)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random