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Hello, I am having a hard time figuring this out.

 

Let's say A is a matrix that projects vectors onto \(\begin{pmatrix}1 \\ 3 \end{pmatrix}\).

 

What is matrix A?

 

Any help is appreciated. 

 

Thank you in advance!!!

 Jul 25, 2022
 #1
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The projection matrix is

\(\begin{pmatrix} 1/10 & 3/10 \\ 1/30 & 1/10 \end{pmatrix}\)

 Jul 25, 2022

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