Exam1A1100

Exam1A1100 - M340L EXAM 1A 11:00 FALL, 2010 Dr. Schurle...

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M340L EXAM 1A 11:00 Your name: FALL, 2010 Dr. Schurle Your UTEID: Show all your work on these pages. Be organized and neat. Your work should be your own; there should be no talking, reading notes, checking laptops, using cellphones, . . . . 1. (16 points) After many row operations you have changed the augmented matrix of a system of linear equations to the following, which is not yet in reduced echelon form. Describe all solutions of the system in parametric vector form. DO NOT USE A CALCULATOR!! SHOW ALL YOUR WORK STEP BY STEP!!! 1 0 2 0 4 1 2 4 16 1 15 13 1 3 11 0 10 7 0 - 2 - 6 1 - 5 - 1

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YOUR SCORE: /100 2. (20 points) State whether each of the following statements is true (T) or false (F). If the given statement is false, then give a true statement as similar as possible to the given one. (a) Two matrices are row equivalent if they have the same number of rows. (b) The echelon form of a matrix is unique.
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Exam1A1100 - M340L EXAM 1A 11:00 FALL, 2010 Dr. Schurle...

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