What is $|| <-3, -6 , 8 > - <5, -2 , -3 > ||$ ?

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Answer 1 · 2016-03-29T17:56:26

$|| A-B ||=sqrt201$

$A= <-3,-6,8>" "B= <5,-2,-3>$

$A-B=<(-3-5),(-6+2),(8+3)>$

$A-B= <-8,-4,11 >$

$|| A-B ||=sqrt((-8)^2+(-4)^2+11^2)$

$|| A-B ||=sqrt(64+16+121)$

$|| A-B ||=sqrt201$

What is || <-3, -6 , 8 > - <5, -2 , -3 > |||| <-3, -6 , 8 > - <5, -2 , -3 > ||?