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Homework Sol Due 9-12-2011 Set 2

# Homework Sol Due 9-12-2011 Set 2 - ISEN 620 Homework Due...

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ISEN 620 Homework Due 9-12-2011 Set 2 5. Redo Problem 4 using the property that matrix multiplication on the left is equivalent to ERO’s. Develop the matrices that perform the ERO steps you used to solve Problem 4 above. 12 2 13 3 1 130100 21 1010 392001 using ERO's of 2 and -3 100 210 301 Row Row Row Row Row Row M ⎡⎤ ⎢⎥ −− ⎣⎦ +→ = 22 33 2 13 0 1 00 07 1 2 10 00 2 301 using ERO's of 1/7 and 1/ 2 10 0 01 / 7 0 001 / 2 Row Row Row Row M →→ = 21 1 3 13 0 1 0 0 01 1 / 7 2 / 7 1 / 00 1 3 / 2 0 1 / 2 using the ERO of -3 0 010 Row Row Row M = 31 1 32 2 4 1 0 3/7 1/7 0 0 1 2/7 0 0 0 1 3/2 0 1/2 using ERO's of -3/7 and 1/ 7 10 3 / 7 / 7 1 Row Row Row

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Homework Sol Due 9-12-2011 Set 2 - ISEN 620 Homework Due...

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