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Pertanyaan

D ik e t ah u i v e k t or a = 2 i + 3 j − k , b = 3 i + j − 2 k , d an c = 4 i − 2 j + 3 k . H a s i l d a r i 2 a + 3 b − c = ...

  1. 9 i plus 7 j plus 3 k

  2. 6 i plus 7 j minus 11 k

  3. 8 i plus 7 j minus 5 k

  4. 9 i plus 11 j minus 11 k

  5. negative 6 i minus 7 j plus 11 k

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I. Roy

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

Jawaban terverifikasi

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Pembahasan

a with rightwards arrow on top equals 2 i with rightwards arrow on top plus 3 j with rightwards arrow on top minus k with rightwards arrow on top equals open parentheses table row 2 row 3 row cell negative 1 end cell end table close parentheses  b with rightwards arrow on top equals 3 i with rightwards arrow on top plus j with rightwards arrow on top minus 2 k with rightwards arrow on top equals open parentheses table row 3 row 1 row cell negative 2 end cell end table close parentheses  c with rightwards arrow on top equals stack 4 i with rightwards arrow on top minus 2 j with rightwards arrow on top plus 3 k with rightwards arrow on top equals open parentheses table row 4 row cell negative 2 end cell row 3 end table close parentheses  H a s i l space d a r i space 2 a space ⃗ plus 3 b space ⃗ minus c space ⃗ space a d a l a h space...  2 open parentheses table row 2 row 3 row cell negative 1 end cell end table close parentheses plus 3 open parentheses table row 3 row 1 row cell negative 2 end cell end table close parentheses minus open parentheses table row 4 row cell negative 2 end cell row 3 end table close parentheses equals open parentheses table row cell 4 plus 9 minus 4 end cell row cell 6 plus 3 plus 2 end cell row cell negative 2 minus 6 minus 3 end cell end table close parentheses equals open parentheses table row 9 row 11 row cell negative 11 end cell end table close parentheses equals 9 i with rightwards arrow on top plus 11 j with rightwards arrow on top minus 11 k with rightwards arrow on top

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Diketahui a = ( 2 − 3 ​ ) , b = ( − 3 5 ​ ) , dan c = ( 6 4 ​ ) . Tentukan vektor-vektor berikut. f. 10 a + 4 b + c

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