Question

determine 3A *(2A* B) para os tres vectores a seguir:
A= 2,00i + 3,00j - 4,00k
B= -3,00i + 4,00j + 2,00k
C= 7,00i- 8,00j

Answer 1

Passo 1: 3(2i + 3j - 4k) × (2(2i + 3j - 4k) × (-3i + 4j + 2k)) =

Passo 2: (6i + 9j - 12k) × ((4i + 6j - 8k) × (-3i + 4j + 2k)) =

Passo 3: (6i + 9j - 12k) × (-12i + 24j + 16k) =

-72i + 216j -192k

Resposta: -72i + 216j - 192k