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

1 Answer
ali ergin
Feb 13, 2016

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

Explanation:

<(-8-4),(5-(-7)),(1-9)><(−8−4),(5−(−7)),(1−9)>
<-12,12,-8><−12,12,−8>
vec r=sqrt ((-12)^2+12^2+(-8)^2)→r=√(−12)2+122+(−8)2
vec r=sqrt (144+144+64)→r=√144+144+64
vec r=sqrt(352)→r=√352
bar i=-12/sqrt 352¯i=−12√352
bar j=12/sqrt 352¯j=12√352
bar k=-8/sqrt 352¯k=−8√352
<-12/sqrt 352 i,12/sqrt 352 j,-8/sqrt 352 k><−12√352i,12√352j,−8√352k>

Related questions
See all questions in Vector Operations
Impact of this question
1490 views around the world
You can reuse this answer
Creative Commons License