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Pertanyaan

Diketahui koordinat-koordinat A ( 3 , 4 , 7 ) , B ( − 2 , 5 , − 3 ) , dan C ( 6 , − 3 , 3 ) . Jika vektor posisi AB = p ​ , BC = q ​ , dan AC = r .Tentukan: e. q ​ − r

Diketahui koordinat-koordinat. Jika vektor posisi. Tentukan:

e.         space 

  1. ... undefined 

  2. ... undefined 

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M. Alfi

Master Teacher

Mahasiswa/Alumni Universitas Negeri Semarang

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Pembahasan

begin mathsize 14px style AB with rightwards arrow on top equals p with rightwards arrow on top equals straight B minus straight A equals open parentheses table row cell negative 2 end cell row 5 row cell negative 3 end cell end table close parentheses minus open parentheses table row 3 row 4 row 7 end table close parentheses equals open parentheses table row cell negative 5 end cell row 1 row cell negative 10 end cell end table close parentheses BC with rightwards arrow on top equals q with rightwards arrow on top equals straight C minus straight B equals open parentheses table row 6 row cell negative 3 end cell row 3 end table close parentheses minus open parentheses table row cell negative 2 end cell row 5 row cell negative 3 end cell end table close parentheses equals open parentheses table row 8 row cell negative 8 end cell row 6 end table close parentheses AC with rightwards arrow on top equals r with rightwards arrow on top equals straight C minus straight A equals open parentheses table row 6 row cell negative 3 end cell row 3 end table close parentheses minus open parentheses table row 3 row 4 row 7 end table close parentheses equals open parentheses table row 3 row cell negative 7 end cell row cell negative 4 end cell end table close parentheses end style 

begin mathsize 14px style q with rightwards arrow on top minus r with rightwards arrow on top equals open parentheses table row 8 row cell negative 8 end cell row 6 end table close parentheses minus open parentheses table row 3 row cell negative 7 end cell row cell negative 4 end cell end table close parentheses equals open parentheses table row 5 row cell negative 1 end cell row 10 end table close parentheses end style  

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