For each of the following elementary matrices, give the row operation that has the same result as left-multiplication by the given matrix: 1000 0300 Add 1 times row 1 to row 2 0 0 1 0 0001 1050 0 1 0 0 Add 1 times row 1 to row 2 0 0 10 0 0 0 1 1000 0 1 0 0 Add 1 times row 1 to row 2 0001 0 0 10