Cross Product of i x -i: Answer?

[Dudealadude]

Homework Statement

cross product of i x -i

Homework Equations

i x i =0, i x j = k, etc.

The Attempt at a Solution

I'm guessing it would be zero, just making sure because I keep getting the question I'm working on wrong.

 

[fzero]

It is zero. You might want to start a new thread with more details on the problem if you're still having trouble.