Question

Escreva a matriz A ( A i j ( 3x4) , sendo a i j = 3 i - 2. j

Answer 1

Resposta:

Explicação passo-a-passo:

$a_1_1=3.1-2.1=1\\a_1_2=3.1-2.2=-1\\a_1_3=3.1-2.3=-3\\a_1_4=3.1-2.4=-5\\a_2_1=3.2-2.1=4\\a_2_2=3.2-2.2=2\\a_2_3=3.2-2.3=0\\a_2_4=3.2-2.4=-2\\a_3_1=3.3-2.1=7\\a_3_2=3.3-2.2=5\\a_3_3=3.3-2.3=3\\a_3_4=3.3-2.4=1\\\\\left[\begin{array}{cccc}1&-1&-3&-5\\4&2&0&-2\\7&5&3&1\end{array}\right]$