Mathematics, 14.09.2019 06:30 sdepasquale24
Solve the following system of linear equations: 3x1+6x2+6x3 = -9 -2x1–3x2-3x3 = 3 if the system has infinitely many solutions, your answer may use expressions involving the parameters r, s, and t. o the system has at least one solution x1 = 0 x2 = 0 x3 = 0 o o
Answers: 1
![\{\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}12\\-7-r\\r\end{array}\right]: \text{r is a real number} \}](/tpl/images/0230/9931/0da1a.png)
![\left[\begin{array}{ccccc}3&6&6&-9\\-2&-3&-3&3\end{array}\right]](/tpl/images/0230/9931/0a1af.png)
.
from row 1. (R2- 2/3R1) and we obtain the matrix ![\left[\begin{array}{cccc}3&6&6&-9\\0&1&1&-7\end{array}\right]](/tpl/images/0230/9931/e57f1.png)
We multiply the row 1 by 
.
, 
, 
then 
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Solve the following system of linear equations: 3x1+6x2+6x3 = -9 -2x1–3x2-3x3 = 3 if the system has...
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