题目
题目
单项选择题

Let \( A = \begin{bmatrix} 2 & -1 \\ -3 & -4 \end{bmatrix}\).Which of the following statements is correct?

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标准答案
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思路分析
The problem asks which statement about the matrix A is correct, where A = [[2, -1], [-3, -4]]. First, I will compute the inverse of A to verify the given candidate. For a 2x2 matrix A = [[a, b], [c, d]], the inver......Login to view full explanation

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