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Pertanyaan

Diberikan titik-titik A ( 1 , 3 ) , B ( 2 , 5 ) , dan C ( –1 , 2 ) . Ruas garis berarah AB dan BC berturut-turut mewakili vektor u dan v , maka nilai dari ….

Diberikan titik-titik  dan  Ruas garis berarah  dan  berturut-turut mewakili vektor  dan , maka nilai dari begin mathsize 14px style open vertical bar straight u with rightwards arrow on top plus straight v with rightwards arrow on top close vertical bar squared equals end style….

  1. begin mathsize 14px style – 18 end style 

  2. undefined 

  3. begin mathsize 14px style – 5 end style 

  4. begin mathsize 14px style 5 end style 

  5. begin mathsize 14px style 18 end style 

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S. Nur

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah D.

jawaban yang tepat adalah D.space space  

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Pembahasan

Dari informasi soal, didapatkan dengan dan Jadi, Jadi, jawaban yang tepat adalah D.

Dari informasi soal, didapatkan

undefined 

dengan

undefined 

dan

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open vertical bar straight v with rightwards arrow on top close vertical bar end cell equals cell open vertical bar BC with rightwards arrow on top close vertical bar end cell row blank equals cell open vertical bar open parentheses table row cell straight x subscript straight C minus straight x subscript straight B end cell row cell straight y subscript straight C minus straight y subscript straight B end cell end table close parentheses close vertical bar end cell row blank equals cell open vertical bar open parentheses table row cell negative 1 minus 2 end cell row cell 2 minus 5 end cell end table close parentheses close vertical bar end cell row blank equals cell open vertical bar open parentheses table row cell negative 3 end cell row cell negative 3 end cell end table close parentheses close vertical bar end cell row blank equals cell square root of open parentheses negative 3 close parentheses squared plus open parentheses negative 3 close parentheses squared end root end cell row blank equals cell square root of 9 plus 9 end root end cell row blank equals cell square root of 18 end cell row blank equals cell 3 square root of 2 end cell end table end style 

Jadi, 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open vertical bar straight u with rightwards arrow on top plus straight v with rightwards arrow on top close vertical bar squared end cell equals cell open parentheses straight u with rightwards arrow on top plus straight v with rightwards arrow on top close parentheses bullet open parentheses straight u with rightwards arrow on top plus straight v with rightwards arrow on top close parentheses end cell row blank equals cell straight u with rightwards arrow on top bullet straight u with rightwards arrow on top plus straight u with rightwards arrow on top bullet straight v with rightwards arrow on top plus straight v with rightwards arrow on top bullet straight u with rightwards arrow on top plus straight v with rightwards arrow on top bullet straight v with rightwards arrow on top end cell row blank equals cell open vertical bar straight u with rightwards arrow on top close vertical bar squared plus 2 straight u with rightwards arrow on top bullet straight v with rightwards arrow on top plus open vertical bar straight v with rightwards arrow on top close vertical bar squared end cell row blank equals cell open parentheses square root of 5 close parentheses squared plus 2 bullet open parentheses negative 9 close parentheses plus open parentheses 3 square root of 2 close parentheses squared end cell row blank equals cell 5 minus 18 plus 18 end cell row blank equals 5 end table end style 

Jadi, jawaban yang tepat adalah D.space space  

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Diberikan titik-titik A ( 1 , 3 ) , B ( 2 , 5 ) , dan C ( –1 , 2 ) . Ruas garis berarah AB dan berturut-turut mewakili vektor u dan v , makanilai dari ....

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