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 ln(1 + 1.2*(x)+ 0.005*(x)^2 + 1.4e-6*(x)^3 ) - ln(1 + 1.2*(315)+ 0.005*(315)^2 + 1.4e-6*(315)^3 ) for x= 300 to x=1000
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random