Question

Matriz 3x4 tal que Aij=i²+2j-i

Answer 1

Aij = i² + 2j - i
a11 → 1² + 2 . 1 - 1 → 1 + 2 - 1 → 2
a12 → 1² + 2 . 2 - 1 → 1 + 4 - 1 → 4
a13 → 1² + 2 . 3 - 1 → 1 + 6 - 1 → 6
a14 → 1² + 2 . 4 - 1 → 1 + 8 - 1 → 8
a21 → 2² + 2 . 1 - 2 → 4 + 2 - 2 → 4
a22 → 2² + 2 . 2 - 2 → 4 + 4 - 2 → 6
a23 → 2² + 2 . 3 - 2 → 4 + 6 - 2 → 8
a24 → 2² + 2 . 4 - 2 → 4 + 8 - 2 → 10
a31 → 3² + 2 . 1 - 3 → 9 + 2 - 3 → 8
a32 → 3² + 2 . 2 - 3 → 9 + 4 - 3 → 10
a33 → 3² + 2 . 3 - 3 → 9 + 6 - 3 → 12
a34 → 3² + 2 . 4 - 3 → 9 + 8 - 3 → 14

$\left[\begin{array}{cccc}2&4&6&8\\4&6&8&10\\8&10&12&14\end{array}\right]$