18. (T 1) (core) Is the following linear transformation injective? Surjective? (Justify both with full sentences). T(x, y, z) = (x − 6y, y − 12z, x+8z)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Linear Algebra Solve only using these topics:

Chapter 1 Linear Equations in Linear Algebra

1-1 Systems of Linear Equations 

1-2 Row Reduction and Echelon Forms

1-3 Vector Equations 

1-4 The Matrix Equation Ax = b 

1-5 Solution Sets of Linear Systems

1-6 Applications of Linear Systems

1-7 Linear Independence 

1-8 Introduction to Linear Transformations

1-9 The Matrix of a Linear Transformation 

 

Chapter 2 Matrix Algebra

 

2-1 Matrix Operations 

2-2 The Inverse of a Matrix 

2-3 Characterizations of Invertible Matrices

2-4 Partitioned Matrices 

2-5 Matrix Factorizations 

2-6 The Leontief Input-Output Model 

2-7 Applications to Computer Graphics

 

Chapter 3 Determinants

 

3-1 Introduction to Determinants 172

3-2 Properties of Determinants 179

3-3 Cramer's Rule, Volume, and Linear Transformations

 

Chapter 4 Vector Spaces

 

4-1 Vector Spaces and Subspaces

4-2 Null Spaces, Column Spaces, Row Spaces, and Linear Transformations 

4-3 Linearly Independent Sets; Bases

18. (T 1) (core) Is the following linear transformation injective? Surjective? (Justify both with full
sentences).
T(x, y, z) = (x − 6y, y − 12z, x+8z)
Transcribed Image Text:18. (T 1) (core) Is the following linear transformation injective? Surjective? (Justify both with full sentences). T(x, y, z) = (x − 6y, y − 12z, x+8z)
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