To find the determinant of the square matrix we first write it as To get the real number value of the determinate we subtract the products of the diagonals, as shown. Determinant The

Its determinant is 2*6 - 4*4 = -4. Multiply by element a 13: -4 * 3 = -12. Element a 13 is + on the sign chart, so the answer is -12. 9 Add your three results together. This is the final step. You've calculated three

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