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Pertanyaan

Diketahui:

table attributes columnalign right center left columnspacing 0px end attributes row cell a with rightwards arrow on top end cell equals cell 2 i plus 3 j plus 4 k end cell row cell b with rightwards arrow on top end cell equals cell i minus j plus 2 k end cell end table

Tentukan a with rightwards arrow on top plus b with rightwards arrow on top!

Y. Herlanda

Master Teacher

Mahasiswa/Alumni STKIP PGRI Jombang

Jawaban terverifikasi

Jawaban

a with rightwards arrow on top plus b with rightwards arrow on top equals 3 i plus 2 j plus 6 k.

Pembahasan

table attributes columnalign right center left columnspacing 0px end attributes row cell a with rightwards arrow on top end cell equals cell 2 i plus 3 j plus 4 k end cell row blank equals cell open parentheses table row 2 row 3 row 4 end table close parentheses end cell row cell b with rightwards arrow on top end cell equals cell i minus j plus 2 k end cell row blank equals cell open parentheses table row 1 row cell negative 1 end cell row 2 end table close parentheses end cell row cell a with rightwards arrow on top plus b with rightwards arrow on top end cell equals cell open parentheses table row 2 row 3 row 4 end table close parentheses plus open parentheses table row 1 row cell negative 1 end cell row 2 end table close parentheses end cell row blank equals cell open parentheses table row 3 row 2 row 6 end table close parentheses end cell row blank equals cell 3 i plus 2 j plus 6 k end cell end table

Jadi, a with rightwards arrow on top plus b with rightwards arrow on top equals 3 i plus 2 j plus 6 k.

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