# quiz2 - Quiz 2 of Math 571(Su11 The Ohio State University...

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Quiz 2 of Math 571 (Su11) June 30, 2011 The Ohio State University This quiz consists of two (2) pages and three (3) problems and is worth a total of 50 points. The point value of each problem is indicated. You may use MATLAB to aid your calcu- lations. However, to obtain full credit, you must show the correct answers along with relevant supporting work and MATLAB functions that you use to justify them. Partial credit will be given based on the work that is shown. However, answers without sufﬁcient supporting work will receive no credit. Also, you must complete the exam in 30 minutes. Good luck! Name: Signature: OSU Internet Username: 1. Let A be a 3 × 3 matrix that is equivalent to the identity matrix I through the sequence of elementary row operations: A R 1 R 1 - R 2 -→ P 1 A R 1 R 1 / 2 -→ P 2 P 1 A R 3 R 3 - R 2 -→ P 3 P 2 P 1 A R 2 R 2 - R 1 -→ P 4 P 3 P 2 P 1 A R 2 R 2 - R 3 -→ P 5 P 4 P 3 P 2 P 1 A R 2 R 2 / 2 -→ P 6 P 5 P 4 P 3 P 2 P 1 A = I, where P

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## This note was uploaded on 11/11/2011 for the course MATH 571 taught by Professor Kim during the Summer '08 term at Ohio State.

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quiz2 - Quiz 2 of Math 571(Su11 The Ohio State University...

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