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Misal A B = ( 5 6 ​ ) dan A C = ( 7 4 ​ ) . Jika titik B (2,1),maka vektor posisi dari titik C adalah...

Misal . Jika titik B(2,1),maka vektor posisi dari titik C adalah...
 

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didapat vektor posisi titik C yaitu

didapat vektor posisi titik C yaitu table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell stack O C with rightwards arrow on top end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open parentheses table row 4 row cell negative 1 end cell end table close parentheses end cell end table

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Jadi, didapat vektor posisi titik C yaitu

table attributes columnalign right center left columnspacing 0px end attributes row cell stack B C with rightwards arrow on top end cell equals cell stack A C with rightwards arrow on top minus stack A B with rightwards arrow on top end cell row cell stack O C with rightwards arrow on top minus stack O B with rightwards arrow on top end cell equals cell stack A C with rightwards arrow on top minus stack A B with rightwards arrow on top end cell row cell stack O C with rightwards arrow on top end cell equals cell stack A C with rightwards arrow on top minus stack A B with rightwards arrow on top plus stack O B with rightwards arrow on top end cell row cell stack O C with rightwards arrow on top end cell equals cell open parentheses table row 7 row 4 end table close parentheses minus open parentheses table row 5 row 6 end table close parentheses plus open parentheses table row 2 row 1 end table close parentheses end cell row cell stack O C with rightwards arrow on top end cell equals cell open parentheses table row 4 row cell negative 1 end cell end table close parentheses end cell end table

Jadi, didapat vektor posisi titik C yaitu table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell stack O C with rightwards arrow on top end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open parentheses table row 4 row cell negative 1 end cell end table close parentheses end cell end table

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Diketahui A ( 2 , 6 , − 5 ) , B ( − 1 , 3 , 7 ) , dan C ( 4 , − 1 , 8 ) . AB dan BC berturut-turut mewakili vektor u dan v . Tentukan: d. ( 2 u − 3 v ) 2

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