Question: Exercise 7.8. Let A = the result is B = 1 0 1 2 0 10 1 2 2-1 4 2 5 1 1

Exercise 7.8. Let A = the result is B = 1 0 1 2 0 10 1 2 2-1 4 2 5 1 1 - 2 Suppose a row operation is applied to A and (a) Find the elementary matrix E such that EA = B. (b) Find the inverse of E, E-1, such that E-B = A.

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