Question

Determinar o vetor v ⃗, tal que u ⃗ + 2v ⃗ = w ⃗ - v ⃗, sendo u ⃗ = (3,7,1) e w ⃗ = (6,10,4).

Answer 1

v=(xyz)
u + 2v = w - v 
2 v + v = w - u
3v = w - u
v = (w-u)/3

(x,y,z) = ((6,10,4)-(3,7,1))/3
= (3,3,3)/3
= (1,1,1)