Question: 2. (5 points) Use the determinant to answer the following: For which a value(s) is the matrix 0 a 1 A = 1 2 a

2. (5 points) Use the determinant to answer the following: For which a value(s) is the matrix 0 a 1 A = 1 2 a noninvertible (also called singular)? Show all work. 1 0 1

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