Question: 2 9. (10 points) Let A = 0 -1 1 2 -2 (a) Find the cofactors Cul, C2 and Cal. (b) Compute det A. (c)

2 9. (10 points) Let A = 0 -1 1 2 -2 (a) Find the cofactors Cul, C2 and Cal. (b) Compute det A. (c) Find only the first row of A-1. (d) Use Cramers rule to find r, only where Ar = banda = ]. (e) Show that det A does not change if on is changed from 2 to 100

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