What is $|| <-8, 5, 1> - < 4 , -7, 9 > ||$ ?

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What is $|| <-8, 5, 1> - < 4 , -7, 9 > ||$ ?

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Answer 1 · 2016-02-13T21:45:01

$<-12/sqrt 352 i,12/sqrt 352 j,-8/sqrt 352 k>$

Explanation:

$<(-8-4),(5-(-7)),(1-9)>$
$<-12,12,-8>$
$vec r=sqrt ((-12)^2+12^2+(-8)^2)$
$vec r=sqrt (144+144+64)$
$vec r=sqrt(352)$
$bar i=-12/sqrt 352$
$bar j=12/sqrt 352$
$bar k=-8/sqrt 352$
$<-12/sqrt 352 i,12/sqrt 352 j,-8/sqrt 352 k>$

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What is $|| <-8, 5, 1> - < 4 , -7, 9 > ||$ ?

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What is || <-8, 5, 1> - < 4 , -7, 9 > |||| <-8, 5, 1> - < 4 , -7, 9 > ||?

1 Answer

Explanation:

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What is $|| <-8, 5, 1> - < 4 , -7, 9 > ||$ ?