108 : 0 0 1 0 A B : 0 : 0 x y z : b (a): Explain specific values of A and B such that the corresponding system of equations has one unique solution. If no such values can be found, explain why not. (b): Explain specific values of A and B such that the corresponding system of equations has infinitely many solutions. If no such values can be found, explain why not. (c): Explain specific values of A and B such that the corresponding system of equations has no solution. If no such values can be found, explain why not.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question

Consider the matrix below that represents a homogeneous system, and has been reduced:

### Matrix System Analysis

Consider the following augmented matrix:

\[
\begin{pmatrix}
1 & 0 & 8 & \vert & 10 \\
0 & 1 & 0 & \vert & 0 \\
0 & A & B & \vert & b \\
\end{pmatrix}
\]

This matrix corresponds to a system of linear equations involving variables \( x \), \( y \), and \( z \).

**Tasks:**

(a) **Explain** specific values of \( A \) and \( B \) such that the corresponding system of equations has one unique solution. If no such values can be found, **explain** why not.

(b) **Explain** specific values of \( A \) and \( B \) such that the corresponding system of equations has infinitely many solutions. If no such values can be found, **explain** why not.

(c) **Explain** specific values of \( A \) and \( B \) such that the corresponding system of equations has no solution. If no such values can be found, **explain** why not.

### Problem Explanation

To determine what specific combinations of \( A \) and \( B \) lead to different types of solutions, we need to consider the conditions that affect the rank of the matrix and the implications for consistency and the number of solutions:

- **Unique Solution:** For a unique solution, the system must be consistent and the rank of the matrix must equal the number of variables.
  
- **Infinitely Many Solutions:** The system is consistent, but the rank of the matrix is less than the number of variables, or there are free variables.

- **No Solution:** The system is inconsistent, indicated by a contradictory equation such as 0 = b where b is a non-zero constant.

Understanding these principles will guide you in assigning values to \( A \) and \( B \) to obtain the specified outcomes.
Transcribed Image Text:### Matrix System Analysis Consider the following augmented matrix: \[ \begin{pmatrix} 1 & 0 & 8 & \vert & 10 \\ 0 & 1 & 0 & \vert & 0 \\ 0 & A & B & \vert & b \\ \end{pmatrix} \] This matrix corresponds to a system of linear equations involving variables \( x \), \( y \), and \( z \). **Tasks:** (a) **Explain** specific values of \( A \) and \( B \) such that the corresponding system of equations has one unique solution. If no such values can be found, **explain** why not. (b) **Explain** specific values of \( A \) and \( B \) such that the corresponding system of equations has infinitely many solutions. If no such values can be found, **explain** why not. (c) **Explain** specific values of \( A \) and \( B \) such that the corresponding system of equations has no solution. If no such values can be found, **explain** why not. ### Problem Explanation To determine what specific combinations of \( A \) and \( B \) lead to different types of solutions, we need to consider the conditions that affect the rank of the matrix and the implications for consistency and the number of solutions: - **Unique Solution:** For a unique solution, the system must be consistent and the rank of the matrix must equal the number of variables. - **Infinitely Many Solutions:** The system is consistent, but the rank of the matrix is less than the number of variables, or there are free variables. - **No Solution:** The system is inconsistent, indicated by a contradictory equation such as 0 = b where b is a non-zero constant. Understanding these principles will guide you in assigning values to \( A \) and \( B \) to obtain the specified outcomes.
Expert Solution
Step 1

Given matrix in reduced form is 

108:0010:00AB:0

for the system 

AX=bwhere X=xyz,b=000

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