Скачать или смотреть Basics on how to find the desired elementary matrix

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Question: Determine the following elementary matrices and their inverses. URGENT
No one answered my question the other time I posted. I'm not sure why I'm getting this question wrong. I have one last attempt. Please help asap! Here's the link to part 1: https://ibb.co/mGkztbLAnd here's the link to part 2: https://ibb.co/z54SJ31

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Answered By:

Brett S.
Experienced College Math Instructor
More information: https://www.wyzant.com/Tutors/CA/Sant...

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Written Explanation:

Elementary matrices always have a determinant of 1 or -1. You are providing the product EA. The question is what is the matrix E such that EA results in A having the first row multiplied by 1/2. Your answer should be[1/2 00 1]Here when you left multiply E to A, the 1/2 will multiply by the first row. The 0,1,0 make sure the rest of the matrix is left alone.
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