Department of Mathematics, Texas A&M University

Finding the Determinant of a 2 x 2 Matrix. The determinant of the matrix is. Example 1: Find the determinant of the following matrices: a. b. c. Finding Determinant of 3x3 Matrix ~ Expansion by Minors (This is the expansion by the first row.) To set-up the minor matrix, ignore the row and column that contains the coefficient. Ex. 2 ................
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