Question

Sendo dados os vetores u=(2,-3,4), v=(-1,0,5) e w=(4,3,-2), determine o vetor x tal que: 3x - 2(u-v) = x + 3w

Answer 1

Bom dia Carlosa

sejam os vetores u = (2,-3,4), v = (-1,0,5) , w = (4,3,-2)

3x - 2*(u - v) = x + 3w

3x - x = 3w + 2*(u - v)

2x = 3*(4, 3, -2) + 2*(-3, 3, 1)
2x = (12, 9, -6) + (-6, 6, 2)
2x = (6, 15, -4)

x = (3, 7.5, -2)