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Question
矩阵行列式的余因式展开公式: [...]
Answer

一个\(n\)阶的行列式\(M\)可以写成一行(或一列)的元素与对应的代数余子式的乘积之和,叫作行列式按一行(或一列)的展开:

\(\begin{align}\det {M}&=\sum _{i=1}^{n}m_{i;j}C_{i,j}=\sum _{i=1}^{n}m_{i;j}(-1)^{(i+j)} M_{ij}\\\det {M}&=\sum _{j=1}^{n}m_{i;j}C_{i,j}=\sum _{j=1}^{n}m_{i;j}(-1)^{(i+j)} M_{ij}\end{align}\)


Question
矩阵行列式的余因式展开公式: [...]
Answer
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Question
矩阵行列式的余因式展开公式: [...]
Answer

一个\(n\)阶的行列式\(M\)可以写成一行(或一列)的元素与对应的代数余子式的乘积之和,叫作行列式按一行(或一列)的展开:

\(\begin{align}\det {M}&=\sum _{i=1}^{n}m_{i;j}C_{i,j}=\sum _{i=1}^{n}m_{i;j}(-1)^{(i+j)} M_{ij}\\\det {M}&=\sum _{j=1}^{n}m_{i;j}C_{i,j}=\sum _{j=1}^{n}m_{i;j}(-1)^{(i+j)} M_{ij}\end{align}\)


Summary

statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Details

No repetitions


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