Question: Show that if A = PLU, then Ax = b may be solved by a two-step process similar to the process in Example 1. Use

Show that if A = PLU, then Ax = b may be solved by a two-step process similar to the process in Example 1. Use this method to solve Ax = b, where A is the matrix in Exercise 18 and b = e2.
Matrix in Exercise 18

011 112

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