Suppose H is a n-dimensional subspace. Let A = Let T H H be a linear transformation. Then [T] = [[T(1)]® [T(ả₂)]® B B True False {ả₁, ···, ản }, B = {₁,...,n} be two bases of H. [T(an)]].

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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### Linear Transformation and Basis Change

#### Problem Statement:

Suppose \( H \) is an \( n \)-dimensional subspace.

Let \( \mathcal{A} = \{ \vec{a}_1, \cdots, \vec{a}_n \} \) and \( \mathcal{B} = \{ \vec{b}_1, \cdots, \vec{b}_n \} \) be two bases of \( H \).

Let \( T: H \to H \) be a linear transformation.

Then 

\[
[T]^{\mathcal{A}}_{\mathcal{B}} = [ [T(\vec{a}_1)]_{\mathcal{B}} \; [T(\vec{a}_2)]_{\mathcal{B}} \; \cdots \; [T(\vec{a}_n)]_{\mathcal{B}} ]
\]

#### Verification:

- **True**
- **False**

For students studying linear algebra, understanding the basis and transformations is crucial. The notation and the logic here represent how a linear transformation \( T \) can be described in terms of its effect on the basis vectors of \( H \), and how it translates between two different bases \( \mathcal{A} \) and \( \mathcal{B} \). This helps in constructing the matrix representation of \( T \) in the new basis \( \mathcal{B} \). 

You can verify this statement by checking how the transformation matrix \( [T]^{\mathcal{A}}_{\mathcal{B}} \) is constructed using the images of the basis vectors of \( \mathcal{A} \) expressed in terms of the basis \( \mathcal{B} \).
Transcribed Image Text:### Linear Transformation and Basis Change #### Problem Statement: Suppose \( H \) is an \( n \)-dimensional subspace. Let \( \mathcal{A} = \{ \vec{a}_1, \cdots, \vec{a}_n \} \) and \( \mathcal{B} = \{ \vec{b}_1, \cdots, \vec{b}_n \} \) be two bases of \( H \). Let \( T: H \to H \) be a linear transformation. Then \[ [T]^{\mathcal{A}}_{\mathcal{B}} = [ [T(\vec{a}_1)]_{\mathcal{B}} \; [T(\vec{a}_2)]_{\mathcal{B}} \; \cdots \; [T(\vec{a}_n)]_{\mathcal{B}} ] \] #### Verification: - **True** - **False** For students studying linear algebra, understanding the basis and transformations is crucial. The notation and the logic here represent how a linear transformation \( T \) can be described in terms of its effect on the basis vectors of \( H \), and how it translates between two different bases \( \mathcal{A} \) and \( \mathcal{B} \). This helps in constructing the matrix representation of \( T \) in the new basis \( \mathcal{B} \). You can verify this statement by checking how the transformation matrix \( [T]^{\mathcal{A}}_{\mathcal{B}} \) is constructed using the images of the basis vectors of \( \mathcal{A} \) expressed in terms of the basis \( \mathcal{B} \).
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