Question

Dados os vetores u=(3,0,1) e v = (m,2, -1),determinar o valor de m sabendo que 2u + v = (10, 4, -1)

Answer 1

2U + V =( 10,4,-1)
2(3,0,1) +(M,2,-1) = 10,4,-1
6,0,2,+ M,2,-1= 10,4,-1
6+M=10=> M= 10-6=> M=4