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(Solved): If A and B are 2\times 2 matrices, det(A)=1, det(B)=9, then det(AB)= det(3A)= det(A^(T))= det(B^( ...



If A and B are 2\times 2 matrices, det(A)=1, det(B)=9, then det(AB)= det(3A)= det(A^(T))= det(B^(-1))= det(B^(2))= det(A-3adj(A^(-1)))=


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