Question: Please solve these two questions Determine whether the statement is true or false, and justify your answer: If A is a 3 x 3 matrix,

Please solve these two questions

Determine whether the statement is true or false, and justify your answer: If A is a 3 x 3 matrix, then det(24) = 2 det(4). Suppose A and B are n x n matrices, and that B is invertible, and that AB is invertible. Prove that A is also invertible

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