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.
(sum of((1+3*((120+2*a)/(60/0.9)-1.5)) * 0.9*(|10-2*a|)/60) a=0 to 6 )
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random