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16-04-2020
Mathematics

contestada

Let v=6i + 9j, and w= -i- 2j. Find 7w + 6v.

Respuesta :

16-04-2020

Step-by-step explanation:

7w+ 6v

= 7 ( 6i + 9j) + 6 ( -I - 2j)

= 42i + 63j - 6i - 12j

= 36i - 51j

= 3 ( 12i - 17j)

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