Question

Construa a matriz A(3x3), com aij=2i+j².

Answer 1

$\left[\begin{array}{ccc}a_{11}&a_{12}&a_{13}\\a_{21}&a_{22}&a_{23}\\a_{31}&a_{32}&a_{33}\end{array}\right] \\ \\ a_{11} = 2.1+1^2 = 3 \\ a_{12} = 2.1+2^2 = 6 \\ a_{13} = 2.1 + 3^2 = 11 \\ a_{21} = 2.2+1^2 = 5 \\a_{22} = 2.2 + 2^2 = 8 \\ a_{23} = 2.2 + 3^2 = 13 \\ a_{31} = 2.3+1^2 = 7 \\ a_{32} = 2.3+2^2 = 10 \\ a_{33} = 2.3+3^2 = 15 \\ \\ A= \left[\begin{array}{ccc}3&6&11\\5&8&13\\7&10&15\end{array}\right]$