Question

Escreva a matriz B=(aij)=3×4 tal que (aij)=2i+j

Answer 1

Resposta:

$B=\left[\begin{array}{cccc}3&4&5&6\\5&6&7&8\\7&8&9&10\end{array}\right]$

Explicação passo a passo:

$a_i_j=2i+j$

$B=\left[\begin{array}{cccc}a_1_1&a_1_2&a_1_3&a_1_4\\a_2_1&a_2_2&a_2_3&a_2_4\\a_3_1&a_3_2&a_3_3&a_3_4\end{array}\right]$

$a_1_1=2.1+1 =2+1=3\\a_1_2=2.1+2=2+2=4\\a_1_3=2.1+3=2+3=5\\a_1_4=2.1+4=2+4=6\\a_2_1=2.2+1=4+1=5\\a_2_2=2.2+2=4+2=6\\a_2_3=2.2+3=4+3=7\\a_2_4=2.2+4=4+4=8\\a_3_1=2.3+1=6+1=7\\a_3_2=2.3+2=6+2=8\\a_3_3=2.3+3=6+3=9\\a_3_4=2.3+4=6+4=10$