Question: The 2 x 2 elementary matrix E can be obtained from the identity matrix using the row operation r? ? r? + 2r2. Find EA

The 2 x 2 elementary matrix E can be obtained from
the identity matrix using the row operation r? ? r? + 2r2.

The 2 x 2 elementary matrix E can be obtained from the identity matrix using the row operation r? ? r? + 2r2. Find EA if A = 4 -5

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