How to change state space from higher dimension to lower?
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I found the below text in a textbook. Can someone help in derivation
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/337336/image.png)
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Mario Malic
2020-7-26
I am not sure if this is the space for such questions.
But you know a rule of matrix multiplication such as A*A^(-1)= I and it matters from which side you do the multiplication. Should be enough to start something.
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