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2006-09-29 11:51:01 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Perform row reductions and find the determinant of a 3 x 3 matrix
Look at the 1st column and see if there are any 1's - if you find 1 - reduce the other rows and evaluate minors from that point.
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2006-09-29 11:54:45 · answer #1 · answered by Anonymous · 1⤊ 0⤋
choose the row or column with the most zeros.
2006-10-06 13:35:30 · answer #2 · answered by Melody 3 · 0⤊ 0⤋
Use a calculator
2006-09-29 12:13:48 · answer #3 · answered by JennyAnn 4 · 0⤊ 2⤋
a11 a12 a13 a14
a21 a22 a23 a24
a31 a32 a33 a34
a41 a42 a43 a44
a11*a22*a33*a44 + a12*a23*a34*a41 + a13*a24*a42*a31 + a14*a43*a32*a21 - a41*a32*a23*a14 - a31*a22*a13*a44 - a21*a12*a34*a43 - a11*a24*a33*a42 = D
2006-09-29 12:10:49 · answer #4 · answered by Helmut 7 · 0⤊ 1⤋