our work on additional pieces of paper. (1) Consider the system of equations x- 2y + 3z = 9 -x+3y-z = -6 2x - 5y + 5z = 17 (a) Write the system as a linear combination of vectors. (b) Write the system as an augmened matrix. (c) Write the system as matrix multiplication, A = b.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Directions: Discuss and solve the following problems in your groups. Recommended: put your work on additional pieces of paper.**

1. **Consider the system of equations**

   \[
   \begin{cases}
   x - 2y + 3z = 9 \\
   -x + 3y - z = -6 \\
   2x - 5y + 5z = 17
   \end{cases}
   \]

   (a) Write the system as a linear combination of vectors.

   (b) Write the system as an augmented matrix.

   (c) Write the system as matrix multiplication, \( A\vec{x} = \vec{b} \).

   (d) **Without solving the system, how can we use the matrix \( A \) to check whether or not a solution exists?** List at least 3 ways.

   (e) Solve the system by row-reduction.

   (f) Solve the system by matrix inversion.
Transcribed Image Text:**Directions: Discuss and solve the following problems in your groups. Recommended: put your work on additional pieces of paper.** 1. **Consider the system of equations** \[ \begin{cases} x - 2y + 3z = 9 \\ -x + 3y - z = -6 \\ 2x - 5y + 5z = 17 \end{cases} \] (a) Write the system as a linear combination of vectors. (b) Write the system as an augmented matrix. (c) Write the system as matrix multiplication, \( A\vec{x} = \vec{b} \). (d) **Without solving the system, how can we use the matrix \( A \) to check whether or not a solution exists?** List at least 3 ways. (e) Solve the system by row-reduction. (f) Solve the system by matrix inversion.
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