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Linear Algebra: Elementary Row Operations
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[QUOTE="SNOOTCHIEBOOCHEE, post: 1310890, member: 60968"] [b]Elementary Matrices: Let A be a mxn matrix. Write down mxm matrices Ers, Dr([tex] \lambda [/tex]) and Trs([tex] \mu [/tex]) Ers Swaps rows r and s, Dr([tex] \lambda [/tex]) multiplies row r by [tex] \lambda [/tex] Trs([tex] \mu [/tex]) adds [tex] \mu [/tex] times row s to row r compute the determinant of the three matrices you found [/b] I don't have trouble with the determinant part of this problem. i am however stuck finding Ers and Trs. i also am not sure if my soltion for Dr (lambda) is correct. i got the following (assuming row r is the top row and mxm=3x3) Ok latex doesn't like me so the matrix looks like this [ Lambda , 0 , 0 0 1 0 0 0 1] PS I am not proficient in latex at all so this might not work [/QUOTE]
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Linear Algebra: Elementary Row Operations
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