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.
det ((1,1,-1), (1,-1,1) , (-1,1,1))
det ((1,1,-1), (1,-1,1) , (-1,1,1))
Natural Language
Math Input
Extended Keyboard
