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Mathematics, 17.10.2021 16:00 shadow29916

Cho A = 1 1
3 4
1 1
 
 
 
   
và B =
1 0
7 2
 
   
. Đặt D = AB = (dij). Khi đó
d32
có giá trị là:

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Cho A = 1 1
3 4
1 1
 
 
 
   
và B =
1...
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