The Determinant of a Matrix

4) For real numbers, what is the multiplicative inverse? So lets make some predictions….. 1) For a 2 X 2 matrix, what is the additive identity? 2) For a 3 X 3 matrix, what is the additive identity? 3) For a 4 X 4 matrix, what is the additive identity? 4) For an n X n matrix, what is the additive identity? ................
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