Question

escreva a matriz E=(aij) 2x3 tal que Aij 3i²+3j

Answer 1

Boa tarde!

$\begin{bmatrix}a11&a12&a13 \\a21&a22&a23\end{bmatrix}$

$\mathit{a11}\rightarrow3*1^{2}+3*1\rightarrow3*1+3\rightarrow3+3=6$$\mathit{a12}\rightarrow3*1^{2}+3*2\rightarrow3*1+6\rightarrow3+6=9$$\mathit{a13}\rightarrow3*1^{2}+3*3\rightarrow3*1+9\rightarrow3+9=12$$\mathit{a21}\rightarrow3*2^{2}+3*1\rightarrow3*4+3\rightarrow12+3=15$$\mathit{a22}\rightarrow3*2^{2}+3*2\rightarrow3*4+6\rightarrow12+6=18$$\mathit{a23}\rightarrow3*2^{2}+3*3\rightarrow3*4+9\rightarrow12+9=21$

$\begin{bmatrix}a11&a12&a13\\a21&a22&a23\end{bmatrix}$ = $\begin{bmatrix}6&9&12\\15&18&21\end{bmatrix}$
Att;Guilherme Lima