Mathematics

Mathematics, 10.10.2021 14:00, paytonpaige22

Cho các ma trận A, B vuông cấp 4.Biết rằng det(A^2) =64m^2 ,det(2B)=-32 a) tìm m để det(A)=12
b)Tìm m đẻ A khả nghịch. Khi đó hãy tính det(4A^-1) theo m
c) Khi m=1/4 hãy tính det(A),det(B),det(3A^2),det(A^4B^ 2),det(A^2*B+A^2)

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Cho các ma trận A, B vuông cấp 4.Biết rằng det(A^2) =64m^2 ,det(2B)=-32 a) tìm m để det(A)=12

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