[線代] use the give matrices to find(AB)^(-1)
Problem:http://ppt.cc/8RJe
1/2 -5/2
A^(-1)=( )
-1/2 3/2
2/3 4/3
B^(-1)=( )
-1/3 5/3
use the given matrices to find (AB)^(-1)
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11/07 18:02, , 1F
11/07 18:02, 1F
→
11/07 18:10, , 2F
11/07 18:10, 2F
推
11/07 19:26, , 3F
11/07 19:26, 3F
→
11/07 19:50, , 4F
11/07 19:50, 4F
→
11/07 21:27, , 5F
11/07 21:27, 5F
→
11/07 21:31, , 6F
11/07 21:31, 6F
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11/08 01:12, , 7F
11/08 01:12, 7F