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

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Answer 1 · 2016-03-28T11:24:12

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

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

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

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

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