Suppose that T : R² → R³ is the linear transformation X1 + x2 () T X1 X2 - Is T onto? Is T one-to-one?

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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Suppose that \( T : \mathbb{R}^2 \rightarrow \mathbb{R}^3 \) is the linear transformation

\[
T \left( \begin{bmatrix} x_1 \\ x_2 \end{bmatrix} \right) = \begin{bmatrix} x_1 + x_2 \\ x_1 \\ x_1 - x_2 \end{bmatrix}
\]

Is \( T \) onto? Is \( T \) one-to-one?
Transcribed Image Text:Suppose that \( T : \mathbb{R}^2 \rightarrow \mathbb{R}^3 \) is the linear transformation \[ T \left( \begin{bmatrix} x_1 \\ x_2 \end{bmatrix} \right) = \begin{bmatrix} x_1 + x_2 \\ x_1 \\ x_1 - x_2 \end{bmatrix} \] Is \( T \) onto? Is \( T \) one-to-one?
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