kristalh077 kristalh077
  • 14-06-2021
  • Mathematics
contestada

Find 3v - 4w if v = -3i and w=-i + 5j. Use < > for
vector notation.

Respuesta :

Corsaquix
Corsaquix Corsaquix
  • 14-06-2021

Answer:

[tex]<-5, 20>[/tex]

Step-by-step explanation:

What we're given:

  • [tex]\vec{v}=-3i[/tex]
  • [tex]\vec{w}=-i+5j[/tex]

The vector [tex]3v-4w[/tex] is then [tex]3(-3i)-4(-i+5j)=-9i+4i-20j=-5i+20j\implies \boxed{<-5, 20>}[/tex]

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