Question

Dados os vetores u = (6,-4,2), v = (2,0,-6) e w = (-8,-4,-2) e o escalar a = 5. a(u+v)-w

Answer 1

5[6,-4,2) +(2,0,-6)]-(-8,-4,-2)

5[(6+2),(-4+0) ,(2-6)]-(-8-4,-2)

5(8,-4,-4)-(-8,-4,-2)

(40,-20,-20)-(-8,-4,-2)

[40-(-8)],[-20-(-4)],[-20-(-2)]

[40+8] , [-20+4],[-20+2]

(48,-16,-18)