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9. Let A and B be a 3 x 3 matrices with detA =-3 and detB-4. Use properties of determinant and find the following: (a)

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9. Let A and B be a 3 x 3 matrices with detA =-3 and detB-4. Use properties of determinant and find the following: (a) (2 points) det AB (b) (2 points) det 5A (c) (2 points) det BT (d) (2 points) det A-1 (e) (2 points) det A3

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