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5. In each of the following cases, find det(A), det (4), det (34), det (42), det (ATA), det (A-1 and det ((AAT)-1). a) A=

5. In each of the following cases, find det(A), det (4"), det (34), det (42), det (ATA), det (A-1 and det ((AAT)-1). a) A= = [4 1 -3 b) A= 0 2 5 1 17

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