Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Our platform connects you with professionals ready to provide precise answers to all your questions in various areas of expertise. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Write the solution of the linear system corresponding to the reduced augmented matrix.

[tex]\[
\left[\begin{array}{rrr|r}
1 & 0 & 0 & -5 \\
0 & 1 & 0 & 1 \\
0 & 0 & 1 & 0
\end{array}\right]
\][/tex]

Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.

A. The unique solution is [tex]\( x_1 = \boxed{-5}, x_2 = \boxed{1}, \text{ and } x_3 = \boxed{0} \)[/tex]. (Simplify your answers.)

B. The system has infinitely many solutions. The solution is [tex]\( x_1 = \boxed{ \ }, x_2 = \boxed{ \}, \text{ and } x_3 = t \)[/tex]. (Simplify your answers. Type expressions using [tex]\( t \)[/tex] as the variable.)

C. There is no solution.


Sagot :

To solve the linear system corresponding to the given reduced augmented matrix:
[tex]\[ \left[\begin{array}{rrr|r} 1 & 0 & 0 & -5 \\ 0 & 1 & 0 & 1 \\ 0 & 0 & 1 & 0 \end{array}\right] \][/tex]

we need to interpret each row of the matrix. Each row represents an equation in the system.

1. The first row is:
[tex]\[ 1x_1 + 0x_2 + 0x_3 = -5 \][/tex]
This simplifies to:
[tex]\[ x_1 = -5 \][/tex]

2. The second row is:
[tex]\[ 0x_1 + 1x_2 + 0x_3 = 1 \][/tex]
This simplifies to:
[tex]\[ x_2 = 1 \][/tex]

3. The third row is:
[tex]\[ 0x_1 + 0x_2 + 1x_3 = 0 \][/tex]
This simplifies to:
[tex]\[ x_3 = 0 \][/tex]

From these simplified equations, we see that there is a unique solution to the system:

The unique solution is:
[tex]\[ x_1 = -5, \; x_2 = 1, \; x_3 = 0 \][/tex]

So the correct choice is:

A. The unique solution is [tex]\( x_1 = -5 \)[/tex], [tex]\( x_2 = 1 \)[/tex], and [tex]\( x_3 = 0 \)[/tex].