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# recn2 - ORIE 3300/5300 RECITATION 2 Fall 2010 LINEAR...

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ORIE 3300/5300 RECITATION 2 Fall 2010 LINEAR ALGEBRA REVIEW — 45 minutes These 4 questions, printed on both sides of each sheet, will help you review how prepared you are in linear algebra. Make your best try at each question. Write in the space provided. Afterwards we will work through the questions. NAME: ID: REC’N: 1. Suppose the matrix A has linearly independent columns. Suppose b is a column vector, and the system Ax = b has a solution. Explain why the solution must be unique. 1

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2. For each matrix below, answer the following questions: Are the columns linearly independent?

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recn2 - ORIE 3300/5300 RECITATION 2 Fall 2010 LINEAR...

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