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Pertanyaan

Diketahui . Jika 4 u − 3 v = n w , maka adalah ….

Diketahui begin mathsize 14px style straight u with rightwards arrow on top equals open parentheses table row cell negative 2 end cell row 4 row 8 end table close parentheses comma blank straight v with rightwards arrow on top equals open parentheses table row 4 row 2 row 6 end table close parentheses comma blank dan blank straight w with rightwards arrow on top equals open parentheses table row 10 row cell negative 5 end cell row cell negative 7 end cell end table close parentheses end style. Jika , maka begin mathsize 14px style straight n open parentheses straight u with rightwards arrow on top minus straight v with rightwards arrow on top close parentheses end style adalah ….

  1. begin mathsize 14px style open parentheses table row 3 row cell negative 1 end cell row cell negative 1 end cell end table close parentheses end style 

  2. begin mathsize 14px style open parentheses table row 6 row cell negative 2 end cell row cell negative 2 end cell end table close parentheses end style 

  3. begin mathsize 14px style open parentheses table row 12 row cell negative 4 end cell row cell negative 4 end cell end table close parentheses end style 

  4. begin mathsize 14px style open parentheses table row cell negative 6 end cell row 2 row 1 end table close parentheses end style 

  5. begin mathsize 14px style open parentheses table row cell negative 12 end cell row 4 row 4 end table close parentheses end style 

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Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah C.

jawaban yang tepat adalah C.space space  

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Pembahasan

Perhatikan bahwa, Perhatikan pada baris pertama Diperoleh , sehingga Jadi, jawaban yang tepat adalah C.

Perhatikan bahwa,

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell 4 straight u with rightwards arrow on top minus 3 straight v with rightwards arrow on top end cell equals cell straight n straight w with rightwards arrow on top end cell row cell 4 open parentheses table row cell negative 2 end cell row 4 row 8 end table close parentheses minus 3 open parentheses table row 4 row 2 row 6 end table close parentheses end cell equals cell straight n open parentheses table row 10 row cell negative 5 end cell row cell negative 7 end cell end table close parentheses end cell row cell open parentheses table row cell negative 8 end cell row 16 row 32 end table close parentheses minus open parentheses table row 12 row 6 row 18 end table close parentheses end cell equals cell open parentheses table row cell 10 straight n end cell row cell negative 5 straight n end cell row cell negative 7 straight n end cell end table close parentheses end cell row cell open parentheses table row cell negative 8 minus 12 end cell row cell 16 minus 6 end cell row cell 32 minus 18 end cell end table close parentheses end cell equals cell open parentheses table row cell 10 straight n end cell row cell negative 5 straight n end cell row cell negative 7 straight n end cell end table close parentheses end cell row cell open parentheses table row cell negative 20 end cell row 10 row 14 end table close parentheses end cell equals cell open parentheses table row cell 10 straight n end cell row cell negative 5 straight n end cell row cell negative 7 straight n end cell end table close parentheses end cell end table end style 

Perhatikan pada baris pertama

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell negative 20 end cell equals cell 10 straight n end cell row cell negative 2 end cell equals straight n end table end style 

Diperoleh begin mathsize 14px style straight n equals negative 2 end style, sehingga

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell straight n open parentheses straight u with rightwards arrow on top minus straight v with rightwards arrow on top close parentheses end cell equals cell negative 2 open parentheses table row cell negative 2 minus 4 end cell row cell 4 minus 2 end cell row cell 8 minus 6 end cell end table close parentheses end cell row blank equals cell negative 2 open parentheses table row cell negative 6 end cell row 2 row 2 end table close parentheses end cell row blank equals cell open parentheses table row 12 row cell negative 4 end cell row cell negative 4 end cell end table close parentheses end cell end table end style 

Jadi, jawaban yang tepat adalah C.space space  

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