Question

dados os vetores U=(1, 2, 1) e V=(2, 1, 0). Calcular (2u-3v)xU

Answer 1

(2u-3v)xU = [2 (1,2,1) - 3 (2,1,0) ] x (1,2,1). = [ (2,4,2) - (6,3,0)] x (1,2,1). = (-4,1,2) x (1,2,1). = ( -4,2,2) Espero ter ajudado!