Linear Transformations - Finding the basis for the image

Click For Summary
SUMMARY

The discussion focuses on finding a basis for the image of the linear transformation T: R^4 → R^3 defined by T(a,b,c,d) = (4a+b -2c - 3d, 2a + b + c - 4d, 6a - 9c + 9d). Participants suggest applying T to the standard basis vectors (1,0,0,0), (0,1,0,0), (0,0,1,0), and (0,0,0,1) to generate four vectors in R^3. Since these vectors cannot be independent, the basis for the image will be a subset of these vectors, which span a specific subspace in R^3.

PREREQUISITES
  • Understanding of linear transformations in vector spaces
  • Familiarity with basis and dimension concepts in linear algebra
  • Knowledge of R^n vector spaces
  • Ability to perform matrix operations and vector calculations
NEXT STEPS
  • Study the concept of the image of a linear transformation in linear algebra
  • Learn how to determine the basis of a vector space
  • Explore the relationship between the kernel and image of linear transformations
  • Practice applying linear transformations to various sets of vectors
USEFUL FOR

Students and educators in linear algebra, mathematicians exploring vector spaces, and anyone seeking to deepen their understanding of linear transformations and their properties.

Nezero
Messages
4
Reaction score
0

Homework Statement


Find a basis for the image of the linear transformation T: R^4 -->R^3 given by the formula T(a,b,c,d) = (4a+b -2c - 3d, 2a + b + c - 4d, 6a - 9c + 9d)


Homework Equations




The Attempt at a Solution



Well this question followed asking about the basis for the kernel which was easy enough. Unfortunately my notes on this aren't very clear and I don't know where to start.
 
Physics news on Phys.org
You have 3 equations involving 4 "unknown" parameters. I recommend applying T to (1,0,0,0), (0,1,0,0), (0,0,1,0), and (0,0,0,1) in turn. That will give you 4 vectors in R^3 which clearly cannot be independent. A basis will be a subset of that set of 4 vectors. What space do they span?
 

Similar threads

  • · Replies 18 ·
Replies
18
Views
3K
  • · Replies 12 ·
Replies
12
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 11 ·
Replies
11
Views
2K
Replies
5
Views
2K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
1K