theresaanderson
theresaanderson theresaanderson
  • 12-05-2017
  • Mathematics
contestada

Please help me solve this math problem and show work if you can to help me understand it better.

Please help me solve this math problem and show work if you can to help me understand it better class=

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mreijepatmat
mreijepatmat mreijepatmat
  • 12-05-2017
Direction of the unit factor (-3,2)
u = u₁.i +u₂.j  =-3i +2j
1- 1st find the magnitude of u

Magnitude of u --> II u II = √[(-3)² +(2)²]===> II u II = √13

To find the unit vector u, you divide vector u by the magnitude

Unit vector = u/√13, but u = u₁.i +u₂.j  =-3i +2j

Then Unit vector = (-3i + 2j)/ √13

Unit vector -3i/√13 +2j/√13






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