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i dont understand this question! 5. Let C = 27. a. Find |C|, the determinant of C. b. Is C invertible? If so, find C-1;

i dont understand this question!

5. Let C = 27. a. Find |C|, the determinant of C. b. Is C invertible? If so, find C-1; otherwise, explain why C is not invertible

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