10. A 5-3 -7

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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just number 10

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### Linear Algebra Exercises: Diagonalization

#### Transformations and Basis for \( \mathbb{R}^2 \)

In Exercises 9–12, define the linear transformation \( T : \mathbb{R}^2 \rightarrow \mathbb{R}^2 \) by \( T(\mathbf{x}) = A\mathbf{x} \). The goal is to find a basis \( \mathcal{B} \) for \( \mathbb{R}^2 \) such that the matrix representation \([T]_{\mathcal{B}}\) is diagonal.

#### Exercise 9:

Given the matrix:
\[ A = \begin{pmatrix}
0 & 1 \\
-3 & 4 
\end{pmatrix} \]

Determine the basis \( \mathcal{B} \) such that the matrix representation of \( T \) in terms of this basis is diagonal.

#### Exercise 10:

Given the matrix:
\[ A = \begin{pmatrix}
5 & -3 \\
-7 & 1 
\end{pmatrix} \]

Identify the basis \( \mathcal{B} \) so that the matrix representation of \( T \) in this basis is diagonal.

---

The tasks involve finding eigenvalues and eigenvectors of the given matrices to construct the required basis \( \mathcal{B} \) that diagonalizes the transformation matrix \( A \).
Transcribed Image Text:--- ### Linear Algebra Exercises: Diagonalization #### Transformations and Basis for \( \mathbb{R}^2 \) In Exercises 9–12, define the linear transformation \( T : \mathbb{R}^2 \rightarrow \mathbb{R}^2 \) by \( T(\mathbf{x}) = A\mathbf{x} \). The goal is to find a basis \( \mathcal{B} \) for \( \mathbb{R}^2 \) such that the matrix representation \([T]_{\mathcal{B}}\) is diagonal. #### Exercise 9: Given the matrix: \[ A = \begin{pmatrix} 0 & 1 \\ -3 & 4 \end{pmatrix} \] Determine the basis \( \mathcal{B} \) such that the matrix representation of \( T \) in terms of this basis is diagonal. #### Exercise 10: Given the matrix: \[ A = \begin{pmatrix} 5 & -3 \\ -7 & 1 \end{pmatrix} \] Identify the basis \( \mathcal{B} \) so that the matrix representation of \( T \) in this basis is diagonal. --- The tasks involve finding eigenvalues and eigenvectors of the given matrices to construct the required basis \( \mathcal{B} \) that diagonalizes the transformation matrix \( A \).
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