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Let u = <-4, -3>. Find the unit vector in the direction of u, and write your answer in component form.

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asked Jul 30, 2014 in TRIGONOMETRY by anonymous

1 Answer

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Using formula = u/|u|

Calculate the magnitude,|u| =√((-4)^2+(-3)^2)

                                         =√(16+9)

                                         =√25

                                         =5

u/|u|=<-4,-3>/5

      =<-4/5,-3/5>

Therefore,unitvector in the component form =<-4/5,-3/5>

answered Jul 30, 2014 by bradely Mentor

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