Question

resolver a questão anexa (SISTEMA LINEAR)

Answer 1

Resposta:

Explicação passo-a-passo:

$D =\left[\begin{array}{ccc}2&3&1\\1&1&1\\5&2&3\\2&3&1\\1&1&1\end{array}\right]$

D = 6 + 2 +15 - 5 - 4 - 9 = 23 - 18 = 5

$Dx = \left[\begin{array}{ccc}11&3&1\\6&1&1\\18&2&3\\11&3&1\\6&1&1\end{array}\right]$

Dx = 33 + 12 + 54 - 18 - 22 - 54 = 45 - 40 = 5

x = Dx /D = 5/5

x = 1

$Dy = \left[\begin{array}{ccc}2&11&1\\1&6&1\\5&18&3\\2&11&1\\1&6&1 \end{array}\right]$

Dy = 36 + 18 + 55 - 30 - 36 - 33 = 73 - 63 = 10

y = Dy/D = 10/5

y = 2

x + y + z = 6

1 + 2 + z = 6

z = 6 - 2 - 1

z = 3