Question

Considerando o espaço vetorial R^3, os vetores u=(1,2,1), v=(3,1,-2) e w=(4,1,0), qual é o valor de 2u+v-3w

Answer 1

u = (1,2,1) ; v=(3,1,-2) ; w=(4,1,0)

s = 2*(1,2,1) + (3,1,-2) - 3* (4,1,0) 
s = (2,4,2) + (3,1,-2) - (12,3,0)
s = (2+3-12 , 4+1-3 , 2-2-0)
s = (-7,2,0)

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16/10/2016
Sepauto
SSRC
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Answer 2

Olá Sophia 

u = (1, 2, 1)
v = (3, 1, -2)
w = (4, 1, 0)

2u = (2, 4, 2)
3w = (12, 3, 0) 

T = 2u + v - 3w = (2, 4, 2) + (3, 1, -2) - (12, 3, 0) 
T = (2 + 3 - 12, 4 + 1 - 3, 2 - 2 - 0)
T = (-7, 2, 0)

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