Kkristinnn Kkristinnn
  • 14-12-2021
  • Mathematics
contestada

given vectors
p=2i-j
q= -i+j
find 1. p+q, 2. p-q, 3. 2p-3q

Respuesta :

goddessboi goddessboi
  • 14-12-2021

Answer:

See below

Step-by-step explanation:

[tex]p=2i-j[/tex]

[tex]q=-i+j[/tex]

[tex]p+q=(2i-j)+(-i+j)=2i-j-i+j=i[/tex]

[tex]p-q=(2i-j)-(-i+j)=2i-j+i-j=3i-2j[/tex]

[tex]2p-3q=2(2i-j)-3(-i+j)=4i-2j+3i-3j=7i-5j[/tex]

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