Question

escrever a matriz A=(aij)3X2=2i+j

Answer 1

Olá Naiaranina,

 

Inicialmente, vamos compor a matriz A_{3x2}:

 

$<var>\left[\begin{array}{ccc}a_{11}&a_{12}\\a_{21}&a_{22}\\a_{31}&a_{32}\end{array}\right]</var>$

 

De acordo com o enunciado, $a_{ij} = 2i + j$.

Logo, a matriz A é:

 

A = $<var>\left[\begin{array}{ccc}2*1 + 1&2*1 + 2\\2*2 + 1&2*2+2\\2*3 + 1&2*3 + 2\end{array}\right]</var>$

 

A = $<var>\left[\begin{array}{ccc}3&4\\5&6\\7&8\end{array}\right]</var>$