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.
32 + 4 - 2*4\*sqrt(2)\*2\*cos(135deg)
32 + 4 - 2*4\*sqrt(2)\*2\*cos(135deg)
Natural Language
Math Input
Extended Keyboard