Question

Dado os vetores u = (-5,2,3) e v = (-2, -1, -1),determine u + 3v:

Escolha uma:
a. ( -1, 11,0 )
b. ( 11,0,-1 )
c. ( -11,-1,0 )
d. ( 11,1,0 )

Answer 1

$u=(-5,2,3);v=(-2,-1,-1)\\\\u+3v\\\\\\(-5,2,3)+3*(-2,-1,-1)\to \\\\(-5,2,3)+(-6,-3,-3)\to \\\\(-11,-1,0)$



Resposta.: Letra C) (-11,-1,0)