Use a property of determinants to show that A and A' have the same characteristic polynomial. ..... Choose the correct answer below. O A. Start with det(A) = (– 1)det(A'). Then use the formula AA' = 1. O B. Start with det (AA'). Use the formula det AB = (det A)(det B) to write det (AA') = (det A) (det AT). Then use the formula AAT = 1. C. Start with det (A - 2l1) = det (A' - al' )= det(A – Al)". Then use the formula det A' = det A.

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