Finding the Standard Matrix A of a Linear Transformation T

  • Thread starter x.x586
  • Start date
  • #1
5
0

Homework Statement



Let T be a linear transformation from R3 to R3. Suppose T transforms (1,1,0) ,(1,0,1) and (0,1,1) to (1,1,1) (0,1,3) and (3,4,0) respectively.

Find the standard matrix of T and determine whether T is one to one and if T is onto

Homework Equations





The Attempt at a Solution


taking a 3x3 matrix entries [x1,x2,x3;x4,x5,x6] and multiply that by a 3x3 matrix with entries [1,1,0;1,0,1;0,1,1] and set that equal to a matrix with entries [1,0,3;1,1,4;1,3,0] and then got a system of equations from there by multiplying the left side out. And then set up an augmented matrix and used row reduction to find corresponding entries for A?
 

Answers and Replies

  • #2
90
2
If you call:


[itex]
V_1= \begin{pmatrix} 1\\1\\0\end{pmatrix},
V_2= \begin{pmatrix} 1\\0\\1\end{pmatrix},
V_3= \begin{pmatrix} 0\\1\\1\end{pmatrix}\\
B_1=\begin{pmatrix} 1\\1\\1\end{pmatrix},
B_2=\begin{pmatrix} 0\\1\\3\end{pmatrix},
B_3=\begin{pmatrix} 3\\4\\0\end{pmatrix}
[/itex]
Then you may write that

[itex]
T\cdot\left ( V_1 V_2 V_3\right) = \left ( B_1 B_2 B_3 \right )
[/itex]
Observe a few things about [itex]\left ( V_1 V_2 V_3\right)[/itex] and you should be on your way to finding the solution.
 

Related Threads on Finding the Standard Matrix A of a Linear Transformation T

  • Last Post
Replies
1
Views
463
Replies
1
Views
4K
Replies
1
Views
1K
  • Last Post
Replies
2
Views
10K
Replies
4
Views
1K
Replies
0
Views
1K
  • Last Post
Replies
1
Views
1K
Replies
6
Views
2K
Z
Top