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Diketahui a = 3 i − j ​ , b = 32 i − 13 j ​ dan c = − 2 i + 8 j ​ . Tentukan: a. a + b − c

Diketahui  dan . Tentukan:

a.  

  1. ...undefined 

  2. ...undefined 

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I. Sutiawan

Master Teacher

Mahasiswa/Alumni Universitas Pasundan

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Pembahasan

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell a with rightwards arrow on top plus b with rightwards arrow on top minus c with rightwards arrow on top end cell equals cell open parentheses 3 i with hat on top minus j with hat on top close parentheses plus open parentheses 32 i with hat on top minus 13 j with hat on top close parentheses minus open parentheses negative 2 i with hat on top plus 8 j with hat on top close parentheses end cell row blank equals cell 3 i with hat on top minus j with hat on top plus 32 i with hat on top minus 13 j with hat on top plus 2 i with hat on top minus 8 j with hat on top end cell row blank equals cell 37 i with hat on top minus 22 j with hat on top end cell end table end style 

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