How do you know to multiply the matrix by the given elementary matrices? Easy Q

Mathematics
Tutor: None Selected Time limit: 1 Day

Jun 16th, 2015

Thank you for the opportunity to help you with your question!

the inverse of the matrix gives

2  3

3 1

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 16th, 2015

hello,pleasure to work with you

Jun 16th, 2015

I wasn't really asking for any calculations. More of a clarification of the solution. How to get the elementary matrices given in the picture to use them for reduction. 

1  -2 

0   1          how do you get that matrix, and the other 2 below it?

Jun 16th, 2015

I wasn't really asking for any calculations. More of a clarification of the solution. How to get the elementary matrices given in the picture to use them for reduction. 

1  -2 

0   1          how do you get that matrix, and the other 2 below it?

Jun 16th, 2015

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Jun 16th, 2015
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Jun 16th, 2015
Dec 3rd, 2016
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