Question

Sendo A = (aij)1x3 tal que aij = 2i – j e B = (bij)1x3 tal que bij = -i + j + 1, calcule A + B.

Answer 1

A=(1x3) A=2.1-3=-1        B=(1x3)   B=-1+3+1=3
   A+B=-1+3=2