Ch-4-Prob-4-New-김준하

A=matrix(QQ, 3, 3, [1, 2, 1, 4, 2, 3, 2, 0, 1]) B=matrix(QQ, 3, 3, [1, 2, 0, 3, 1, 0, 0, 0, 5]) print A.det() print A.transpose().det() AB=A*B print B.det() print AB.det() print A.inverse().det() 

2
2
-25
-50
1/2

2
2
-25
-50
1/2