Respuesta :

samuellai03

Answer:

[tex]-i+5j[/tex]

Step-by-step explanation:

[tex]u=8i-4j[/tex]

[tex]v = -9i+9j[/tex]

[tex]u+v = (8-9)i + (-4+9)j[/tex]

[tex]u+v = -i + 5j[/tex]

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