# Thread: vector calc

1. ## vector calc

Find a unit vector perpendicular to both vector A and B
A=4i-j+3k and B=-2i+j-2k

2. Originally Posted by leinadwerdna
Find a unit vector perpendicular to both vector A and B
A=4i-j+3k and B=-2i+j-2k
$\frac{A\times B}{||A\times B||}$