What is $|| <-8, 3, -1> - < 4 , -5, 3 > ||$ ?

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Answer 1 · 2018-04-22T14:06:52

$4sqrt14$

$||<-8,3,-1>-<4,-5,3>||$

$= ||<-8-4, 3- -5, -1-3>||$

$=||<-12,8,-4>||$

$=sqrt(12^2+8^2+4^2)$

$=sqrt(144+64+16)$

$=sqrt(224)$

$=4sqrt14$

What is || <-8, 3, -1> - < 4 , -5, 3 > |||| <-8, 3, -1> - < 4 , -5, 3 > ||?