B = [3 {[9][9]} 02 4 0 56

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

Is this a basis for M2×2? Can you explain why?

**Matrix Set Representation:**

The set \( B \) is defined as:

\[ 
B = \left\{ \begin{bmatrix} 1 & 0 \\ 0 & 2 \end{bmatrix}, \begin{bmatrix} 3 & 0 \\ 4 & 0 \end{bmatrix}, \begin{bmatrix} 0 & 0 \\ 5 & 6 \end{bmatrix} \right\}
\]

**Explanation:**

- The set \( B \) contains three 2x2 matrices.
  
  1. The first matrix is:
     \[
     \begin{bmatrix} 1 & 0 \\ 0 & 2 \end{bmatrix}
     \]
     This is a diagonal matrix where only the diagonal elements (1 and 2) are non-zero.
  
  2. The second matrix is:
     \[
     \begin{bmatrix} 3 & 0 \\ 4 & 0 \end{bmatrix}
     \]
     This matrix has non-zero elements in the first column.
  
  3. The third matrix is:
     \[
     \begin{bmatrix} 0 & 0 \\ 5 & 6 \end{bmatrix}
     \]
     This matrix has non-zero elements in the second row.

These matrices could possibly be used in linear transformations, systems of equations, or other advanced mathematical concepts.
Transcribed Image Text:**Matrix Set Representation:** The set \( B \) is defined as: \[ B = \left\{ \begin{bmatrix} 1 & 0 \\ 0 & 2 \end{bmatrix}, \begin{bmatrix} 3 & 0 \\ 4 & 0 \end{bmatrix}, \begin{bmatrix} 0 & 0 \\ 5 & 6 \end{bmatrix} \right\} \] **Explanation:** - The set \( B \) contains three 2x2 matrices. 1. The first matrix is: \[ \begin{bmatrix} 1 & 0 \\ 0 & 2 \end{bmatrix} \] This is a diagonal matrix where only the diagonal elements (1 and 2) are non-zero. 2. The second matrix is: \[ \begin{bmatrix} 3 & 0 \\ 4 & 0 \end{bmatrix} \] This matrix has non-zero elements in the first column. 3. The third matrix is: \[ \begin{bmatrix} 0 & 0 \\ 5 & 6 \end{bmatrix} \] This matrix has non-zero elements in the second row. These matrices could possibly be used in linear transformations, systems of equations, or other advanced mathematical concepts.
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