Perform row options Eaiter the following matrices 1 2 3 A=1456 (a) Enter the following command in MATLAB: 2016 Stefanie Tracing, So MSS, and ASU MATLAB sessions: Laboratory I A (2, :) =A (2, :)-4eA...

Perform row options Eaiter the following matrices 1 2 3 A=1456 (a) Enter the following command in MATLAB: 2016 Stefanie Tracing, So MSS, and ASU MATLAB sessions: Laboratory I A (2, :) =A (2, :)-4eA (1, :) This command performs an elementary row operation on the matrix A. Describe the row operation. (b) On the matrix obtained in part (a), use MATLAB to perform a row operation that subtracts 7 times the first row from the third row (c) On the matrix obtained in part (b), divide the second row by-3.