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Pertanyaan

Ditentukan vektor u = ⎣ ⎡ ​ 7 6 2 ​ ⎦ ⎤ ​ , v = ⎣ ⎡ ​ 4 2 1 ​ ⎦ ⎤ ​ , dan w = ⎣ ⎡ ​ 1 5 4 ​ ⎦ ⎤ ​ . Hasil dari ( 3 u − 2 v + w ) adalah...

Ditentukan vektor , dan . Hasil dari  adalah...

  1. open square brackets table row cell negative 3 end cell row cell negative 10 end cell row 7 end table close square brackets 

  2. open square brackets table row cell negative 1 end cell row 17 row 5 end table close square brackets 

  3. open square brackets table row 14 row 19 row 8 end table close square brackets 

  4. open square brackets table row 13 row 17 row cell negative 7 end cell end table close square brackets 

  5. open square brackets table row 12 row 18 row cell negative 9 end cell end table close square brackets 

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S. Ardanari

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang benar adalah C.

jawaban yang benar adalah C.

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Pembahasan

Pembahasan
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Diketahui, Ditanyakan, Hasil dari Hasil dari adalah . Oleh karena itu, jawaban yang benar adalah C.

Diketahui,

  •  u with rightwards arrow on top equals open square brackets table row 7 row 6 row 2 end table close square brackets
  • v with rightwards arrow on top equals open square brackets table row 4 row 2 row 1 end table close square brackets
  • w with rightwards arrow on top equals open square brackets table row 1 row 5 row 4 end table close square brackets

Ditanyakan,

  • Hasil dari open parentheses 3 u with rightwards arrow on top minus 2 v with rightwards arrow on top plus w with rightwards arrow on top close parentheses 

table attributes columnalign right center left columnspacing 0px end attributes row cell 3 u with rightwards arrow on top minus 2 v with rightwards arrow on top plus w with rightwards arrow on top end cell equals cell 3 open square brackets table row 7 row 6 row 2 end table close square brackets minus 2 open square brackets table row 4 row 2 row 1 end table close square brackets plus open square brackets table row 1 row 5 row 4 end table close square brackets end cell row blank equals cell open square brackets table row cell 3 times 7 end cell row cell 3 times 6 end cell row cell 3 times 2 end cell end table close square brackets minus open square brackets table row cell 2 times 4 end cell row cell 2 times 2 end cell row cell 2 times 1 end cell end table close square brackets plus open square brackets table row 1 row 5 row 4 end table close square brackets end cell row blank equals cell open square brackets table row 21 row 18 row 6 end table close square brackets minus open square brackets table row 8 row 4 row 2 end table close square brackets plus open square brackets table row 1 row 5 row 4 end table close square brackets end cell row blank equals cell open square brackets table row cell 21 minus 8 plus 1 end cell row cell 18 minus 4 plus 5 end cell row cell 6 minus 2 plus 4 end cell end table close square brackets end cell row blank equals cell open square brackets table row 14 row 19 row 8 end table close square brackets end cell end table

Hasil dari open parentheses 3 u with rightwards arrow on top minus 2 v with rightwards arrow on top plus w with rightwards arrow on top close parentheses adalah open square brackets table row 14 row 19 row 8 end table close square brackets.

Oleh karena itu, jawaban yang benar adalah C.

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Diketahui vektor-vektor p ​ = 10 i − 3 j ​ , q ​ = 3 i + 2 j ​ − k , dan r = 4 j ​ + 7 k . Hasil dari 3 p ​ − q ​ + 2 r adalah... .

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