Question

What is the cross product of `[2,-1,2]` and `[1,-1,3]`?

Answer 1

`A X B=-i-4j-k`

Explanation:

`A=[2,-1,2]`
`B=[1,-1,3]`
`A X B=i(-1*3+2*1)-j(2*3-2*1)+k(2*(-1)+1*1)`

`A X B=i(-3+2)-j(6-2)+k(-2+1)`

`A X B=-i-4j-k`