Question

Representar explicitamente A matriz B =(ai j)3×3. tal que a i j .= i + 2j
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Answer 1

Resposta:

Explicação passo a passo:

$B=\left[\begin{array}{ccc}a_1_1&a_1_2&a_1_3\\a_2_1&a_2_2&a_2_3\\a_3_1&a_3_2&a_3_3\end{array}\right] \\\\a_1_1=1+2.1=1+2=3\\\\a_1_2=1 +2.2=1+4=5\\\\a_1_3=1+3.3=1+9=10\\\\a_2_1=2+2.1=2+2=4\\\\a_2_2=2+2.2=2+3=6\\\\a_2_3=2+2.3=2+6=8\\\\a_3_1=3+2.1=3+2=5\\\\a_3_2=3+2.2=3+4=7\\\\a_3_3=3+2.3=3+6=9$$\\\\\\\\B=\left[\begin{array}{ccc}3&5&10\\4&6&8\\5&7&9\end{array}\right]$