Question

Dados os vetores u = (3,-1,2) e v = (2,3,0), determinar um vetor w tal w . u = -2 e w x v = (3,-2,-3).

Answer 1

Eu faria assim:

w x v = (3,-2,-3)
w x (2,3,0) = (3,-2-3)
w= (3,-2,-3)/(2,3,0)
w= (3/2,-2/3,0) 

Espero ter ajudado!