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January 29th, 2011, 02:07 PM   #1
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Matrix as a product of elementary matrices

Hey everyone I need to make this matrix as products of elementary matrices


I cannot seem to get the answer, I've done it multiple times and this is what I get for the answer:








Can someone please help figure out what I am doing wrong.

Thanks
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February 1st, 2011, 10:39 AM   #2
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Re: Matrix as a product of elementary matrices

I'm sorry, but what does it mean to make it the product of elementary matrices? It looks pretty elementary to me, unless that's a particular term.
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February 1st, 2011, 11:14 AM   #3
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Re: Matrix as a product of elementary matrices

This much is correct:


Now what you want is to add the first row to the second row, so premultiply by , and finish by premultiplying with row multiplications.
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