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Ch-4-Prob-P5-New-권의회
2278 days ago by matrix
adjA=matrix(QQ, 3, 3, [1, 0, 0, 0, 3, 2, 0, 7, 6]) print adjA.determinant()
4
4
P=(adjA.determinant())^(1/(3-1)) print P
2
2
A=P*adjA.inverse() print A
[ 2 0 0] [ 0 3 -1] [ 0 -7/2 3/2]
[ 2 0 0] [ 0 3 -1] [ 0 -7/2 3/2]