Question: (1 point) Let E be the 3 x 3 matrix that corresponds to the row operation R3 = R3 - R. (a) Find E-1:

(1 point) Let E be the 3 x 3 matrix that corresponds

(1 point) Let E be the 3 x 3 matrix that corresponds to the row operation R3 = R3 - R. (a) Find E-1: (b) Find EA where A = -21 23 -43 37 -39 6: 17 -3 42 E- = 46881 EA =

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