Question

Construa a matriz

C=(cij) 2×3 tal que cij ={2i-j,se i>j

i+j,se i=j

3i+j,se i}

Answer 1

Resposta:

Matriz 2x3:

$\left[\begin{array}{ccc}a_{11} &a_{12} &a_{13} \\a_{21} &a_{22} &a_{23} \end{array}\right]$

Calculando:

$a_{11} = 1+1 = 2\\a_{12}=(3*1)+2=5\\a_{13}=(3*1)+3=6$

$a_{21}=(2*2)-1=3\\a_{22}=2+2=4\\a_{23}=(3*2)+3=9$

Assim:

$\left[\begin{array}{ccc}2&5&6\\3&4&9\end{array}\right]$