ocr: 17 - 3 311 -(1X1)-(7X5)--34 4-24 5 51 2 Sign arrays. for a 3x3 determinant for a 4x4 determinant The sign ofa number ina determinant in rowi and column /is (-1)i+j Roll the cursor over a number in this determinant to see the minor of that number. The Minors of a Determinant