They do not seem to mention this case in the book, but if they say A is an augmented 3x5 matrix, then does it look like the following?(adsbygoogle = window.adsbygoogle || []).push({});

1 0 0 0 0 | 0

0 1 0 0 0 | 0

0 0 1 0 0 | 0

or

1 0 0 0 | 0

0 1 0 0 | 0

0 0 1 0 | 0

I'm a bit confused. If they say 6 columns that includes the constants columns as well?

So another example, this matrix is 2x3?

1 0 | 0

0 1 | 0

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# Another matrix question

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