Question

Matriz por favor?
se A= (-1,0,2,1) e B= (4,2,6,0 encontre o valor de 2 A - 1/2 b

Answer 1

2A = 2 . ( -1, 0, 2, 1 ) = ( -2, 0, 4, 2)   e  1/2 . ( 4, 2, 6, 0 ) = ( 4/2, 2/2, 6/2, 0/2)

daí ( -2, 0, 4, 2) - ( 2, 1, 3, 0) =  ( -4, -1, 1, 2).  tá resolvido.