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Linear AlgebraEasyRow Reduction & Rank

Row Reduction & Rank · Easy problem

Let EE be the 3×33 \times 3 elementary matrix such that, for every 3×33 \times 3 matrix AA, the product EAEA is AA with row 2 replaced by (row 2) − 4 -\,4\,(row 1). What is the entry of EE in row 2, column 1?