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Diketahui vektor-vektor a = i + 2 j ​ − 3 k , b = 3 i + 5 j ​ , c = − 2 i − 4 j ​ + k dan vektor u = 2 a + b − c . Vektor u = ....

Diketahui vektor-vektor  dan vektor . Vektor 

  1. 5 i with rightwards arrow on top space plus space 6 j with rightwards arrow on top space plus space k with rightwards arrow on top

  2. 3 i with rightwards arrow on top space – space 2 j with rightwards arrow on top space – space 2 k with rightwards arrow on top space

  3. 2 i with rightwards arrow on top space – space 2 stack j space with rightwards arrow on top

  4. 7 i with rightwards arrow on top plus 13 j with rightwards arrow on top minus 7 k with rightwards arrow on top

  5. 7 i with rightwards arrow on top space – space 8 j with rightwards arrow on top space – space 2 k with rightwards arrow on top

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Pembahasan

u with rightwards arrow on top equals 2 a with rightwards arrow on top plus b with rightwards arrow on top minus c with rightwards arrow on top u with rightwards arrow on top equals 2 open parentheses table row 1 row 2 row cell negative 3 end cell end table close parentheses plus open parentheses table row 3 row 5 row 0 end table close parentheses minus open parentheses table row cell negative 2 end cell row cell negative 4 end cell row 1 end table close parentheses equals open parentheses table row 7 row 13 row cell negative 7 end cell end table close parentheses J a d i comma space v e k t o r space u with rightwards arrow on top equals 7 i with rightwards arrow on top plus 13 j with rightwards arrow on top minus 7 k with rightwards arrow on top

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Diketahui koordinat A(6,1,-5) dan vektor A B = 2 i − 3 j ​ + 2 k ,maka koordinat B adalah ....

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