Question: 2 2. (7 points) Let A = -4 -1 2 -3 -1 and o = [ : ]. (a) (3 pts) Use Gauss-Jordan elimination to

2 2. (7 points) Let A = -4 -1 2 -3 -1 and o = [ : ]. (a) (3 pts) Use Gauss-Jordan elimination to compute A- if it exists. (b) (1 pt) What is rank(A)? (c) (1 pt) What is the span of the columns of A? Justify your answer. (d) (2 pts) Without using elimination, use part (a) to solve Ar = b

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