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EGR102_Quiz04_Solution-1

# EGR102_Quiz04_Solution-1 - EGR102 Spring2012...

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EGR 102 Spring 2012 Solution to Lecture Quiz 4, 02/03/2012 Augmented Matrix: 2 1 െ3 11 4 െ2 3 8 െ2 2 െ1 െ6 Multiply row 1 by ( 2), and then add rows 1 and 2 to create a new equation 2 in which the (2,1) term is zero. Do not change equations 1 or 3. 2 1 െ3 11 0 െ4 9 െ14 െ2 2 െ1 െ6 Add rows 1 and 3 to create a new equation 3 in which the (3,1) term is zero. Do not change equations 1 or 2. 2 1 െ3 11 0 െ4 9 െ14 0 3 െ4 5 Multiply row 2 by (3) and multiply row 3 by (4). Then add rows 2 and 3 to create a new equation 3 in which the (3,2) term is zero. Do not change equations 1 or 2. 2 1 െ3 11 0 െ4 9
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