Question

a= (aij)2×2de onde aij = 2i- j e b = (bij)2×2 onde bij= j-i determine

Answer 1

aij=2i-j
a(1,1)=2×1-1=1
a(1,2)=2×1-2=0

a(2,1)=2×2-1=3
a(2,2)=2×2-2=2

bij=j-i
b(1,1)= 1-1=0
b(1,2)= 2-1=1

b(2,1)= 1-2=-1
b(2,2)=2-2=0

Obs: i- linhas e j=colunas