拓展资源2

矩阵的历史(03:34)
https://www.bilibili.com/video/BV1MJ41127L2/

矩阵的实际应用(01:57)
https://www.bilibili.com/video/BV1YJ41127PC/

矩阵乘积的实例(05:00)
https://www.bilibili.com/video/BV1YJ41127Ah/

平面直角坐标变换(06:19)
https://www.bilibili.com/video/BV1aJ41127YH/

方阵为对称阵与反对称阵之和(10:41)
https://www.bilibili.com/video/BV1aJ41127bm/

初等矩阵与初等变换(17:45)
https://www.bilibili.com/video/BV1aJ41127qB/

从倒数到逆矩阵(08:21)
https://www.bilibili.com/video/BV1JJ411R7K9/

初等矩阵的可逆性(06:48)
https://www.bilibili.com/video/BV1JJ411R73C/

用初等变换求逆矩阵(10:54)
https://www.bilibili.com/video/BV1JJ411R7My/

行列式的历史(04:41)
https://www.bilibili.com/video/BV1EJ411R7BN/

行列式的转置(09:43)
https://www.bilibili.com/video/BV1EJ411R7yW/

行列式乘法定理(15:41)

https://www.bilibili.com/video/BV1zJ411X79p/

行列式的性质串讲(17:09)
https://www.bilibili.com/video/BV1zJ411X7Uc/

用倍加行变换化方阵为上三角矩阵(06:54)
https://www.bilibili.com/video/BV1zJ411X7RE/

对换变换改变行列式的符号(29:06)
https://www.bilibili.com/video/BV1ZJ411X7j9/