Question

construa a matriz de A2×3,onde aij=i+j​

Answer 1

$\left[\begin{array}{ccc}a11&a12&a13\\a21&a22&a23\end{array}\right]$

a11 ⇒ 1 + 1 = 2

a12⇒ 1 + 2 = 3

a13⇒ 1 + 3 = 4

a21⇒ 2 + 1 = 3

a22⇒ 2 + 2 = 4

a23⇒ 2 + 3 = 5

A = $\left[\begin{array}{ccc}2&3&4\\3&4&5\end{array}\right]$

Bons estudos!