Tuesday, August 13, 2013

Find a unit vector in the same direction as <-12,-5>


v=<-12,-5> 

abs%28v%29=sqrt%28++%28-12%29%5E2%2B%28-5%29%5E2+++%29=13+++ 

so 

u=<-12/13, -5/13> 


:)
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