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15问答网 > 线性代数，矩阵秩的关系，图中问号后面看不懂了。

线性代数，矩阵秩的关系，图中问号后面看不懂了。

2025-03-16 03:21:26

推荐回答（1个）

回答1：

矩阵秩的定义，是从行列式入手，存在r阶行列式不为0，r+1阶行列式全为0，就称秩为r。
那么对于行列式，0元素越多，自然越容易为0.仔细想想是不是这样。0元素越少，不一定秩就大，但起码不会更小。所以图中把一个O分块替换成C，秩是只可能增大的。

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