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8. Let A = N (a) Calculate each of the cofactors Cij of the matrix A. (b) Use cofactor expansion along the first row of

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8. Let A = N (a) Calculate each of the cofactors Cij of the matrix A. (b) Use cofactor expansion along the first row of A to calculate det A. (c) Assemble the cofactors Cij of A into a 3 x 3 matrix C where Caj is the ij-th entry of C. Calculate the matrix product CTA

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