Question

Sendo A(aij)2x3 = 2i + 3 e B(bij)2x3 com $\left \{ {{bij = 2, i = j} \atop {3i, i\ \textless \ j} } \right \atop {1^{2} , i \ \textgreater \ j}}$ calcule o valor de $(A+B)^{t}$

Answer 1

$a_{11}=2.1+3=5\\a_{12}=2.1+3=5\\a_{13}=2.1+3=5$

$a{21}=2.2+3=7\\a_{22}=2.2+3=7\\a_{23}=2.2+3=7$

$A=\begin{bmatrix}5&5&5\\7&7&7\end{bmatrix}$

$b_{11}=2\\b_{12}=3.1=3\\b_{13}=3.1=3$

$b_{21}={1}^{2}=1\\b_{22}=2\\b_{13}=3.1=3$

$B=\begin{bmatrix}2&3&3\\1&2&3\end{bmatrix}$

$A+B=\begin{bmatrix}7&8&8\\8&9&10\end{bmatrix}$

$\boxed{\boxed{\mathsf{{(A+B)}^{T}=\begin{bmatrix}7&8\\8&9\\8&10\end{bmatrix}}}}$