1. Let L: R³ → R² be the linear (matrix) transformation L= TẠ defined by 2] 3 -6 -1 A = (a) Find the dimension of ker L with whatever method or justification you prefer. (b) Is L injective? (c) Find the dimension of L(R³) with whatever method or justification you prefer. (d) Is L surjective?

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.6: The Matrix Of A Linear Transformation
Problem 26EQ
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1. Let L: R³ → R² be the linear (matrix) transformation L = TẠ defined by
1 -1
2]
3 -6
A=
(a) Find the dimension of ker L with whatever method or justification you prefer.
(b) Is L injective?
(c) Find the dimension of L(R³) with whatever method or justification you prefer.
(d) Is L surjective?
Transcribed Image Text:1. Let L: R³ → R² be the linear (matrix) transformation L = TẠ defined by 1 -1 2] 3 -6 A= (a) Find the dimension of ker L with whatever method or justification you prefer. (b) Is L injective? (c) Find the dimension of L(R³) with whatever method or justification you prefer. (d) Is L surjective?
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