Homework 2, due February 8, 2017.

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Reading: all of Chapter 6.

Exercises: 6.3.2, 6.4.5, 6.5.5, 6.5.9, 6.8.5.

In each of these, the first two numbers indicate the problem and the last one indicates the matrix, e.g., 4.2.7 means problem 4.2 and the 7 means do it only for A_7.