Question

exercício sobre matriz

Answer 1

Resposta:

a₁₁ : i = j => i + j => 1 + 1 = 2

a₁₂ : i ≠ j = 2

a₂₁ :  i ≠ j = 2

a₂₂ : i = j => i + j => 2 + 2 = 4

$\left[\begin{array}{ccc}2&2\\2&4\end{array}\right]$