MATH 309 HOMEWORK 8 EVEN SOLUTIONS Section 4.5, Problem 20

A basis for the row space of A is given by the transposes of nonzero rows of any echelon form of A. In this case we can use B to see that a basis is given by f[1 3 0 5 7]T;[0 0 2 3 8]T;[0 0 0 0 5]Tg: The basis for the null space takes slightly more work but it is an algorithm that we have been performing for a while now. ................
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