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#