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

Pertanyaan

Diketahui undefinedsize 14px b with size 14px rightwards arrow on top size 14px equals size 14px 2 size 14px i with size 14px hat on top size 14px minus size 14px 13 size 14px j with size 14px hat on top  dan  undefined. Tentukan:

b. begin mathsize 14px style a with rightwards arrow on top minus b with rightwards arrow on top plus c with rightwards arrow on top end style 

  1. ...undefined 

  2. ...undefined 

I. Sutiawan

Master Teacher

Mahasiswa/Alumni Universitas Pasundan

Jawaban terverifikasi

Pembahasan

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell a with rightwards arrow on top minus b with rightwards arrow on top plus 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 minus open parentheses 2 i with hat on top minus 13 j with hat on top close parentheses plus 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 minus 2 i with hat on top plus 13 j with hat on top minus 2 i with hat on top plus 8 j with hat on top end cell row blank equals cell negative i with hat on top plus 20 j with hat on top end cell end table end style 

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