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.
Unit vector orthogonal to (2, 1) . (Ans: (+/- 1, -/+ 2)/\sqrt 5 .)
Unit vector orthogonal to (2, 1) . (Ans: (+/- 1, -/+ 2)/\sqrt 5 .)
Natural Language
Math Input
Extended Keyboard
