问一行列式题行列式题 |x 1 1 1| |x+3 1 1 1||1-x x-1 1 1|=| 0 x-1 0 0||1-x 0 x-1 1| | 0 0 x-1 0||1-x 0 0 x-1| | 0 0 0 x-1|看了半天没看懂 是怎么转化的,上图作废 请见此图|x.....1...1.....1|..|x+3...1...1....1||1-x..x-1..1...
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![问一行列式题行列式题 |x 1 1 1| |x+3 1 1 1||1-x x-1 1 1|=| 0 x-1 0 0||1-x 0 x-1 1| | 0 0 x-1 0||1-x 0 0 x-1| | 0 0 0 x-1|看了半天没看懂 是怎么转化的,上图作废 请见此图|x.....1...1.....1|..|x+3...1...1....1||1-x..x-1..1...](/uploads/image/z/2090453-5-3.jpg?t=%E9%97%AE%E4%B8%80%E8%A1%8C%E5%88%97%E5%BC%8F%E9%A2%98%E8%A1%8C%E5%88%97%E5%BC%8F%E9%A2%98+%7Cx+1+1+1%7C+%7Cx%2B3+1+1+1%7C%7C1-x+x-1+1+1%7C%3D%7C+0+x-1+0+0%7C%7C1-x+0+x-1+1%7C+%7C+0+0+x-1+0%7C%7C1-x+0+0+x-1%7C+%7C+0+0+0+x-1%7C%E7%9C%8B%E4%BA%86%E5%8D%8A%E5%A4%A9%E6%B2%A1%E7%9C%8B%E6%87%82+%E6%98%AF%E6%80%8E%E4%B9%88%E8%BD%AC%E5%8C%96%E7%9A%84%2C%E4%B8%8A%E5%9B%BE%E4%BD%9C%E5%BA%9F+%E8%AF%B7%E8%A7%81%E6%AD%A4%E5%9B%BE%7Cx.....1...1.....1%7C..%7Cx%2B3...1...1....1%7C%7C1-x..x-1..1...)
问一行列式题行列式题 |x 1 1 1| |x+3 1 1 1||1-x x-1 1 1|=| 0 x-1 0 0||1-x 0 x-1 1| | 0 0 x-1 0||1-x 0 0 x-1| | 0 0 0 x-1|看了半天没看懂 是怎么转化的,上图作废 请见此图|x.....1...1.....1|..|x+3...1...1....1||1-x..x-1..1...
问一行列式题
行列式题
|x 1 1 1| |x+3 1 1 1|
|1-x x-1 1 1|=| 0 x-1 0 0|
|1-x 0 x-1 1| | 0 0 x-1 0|
|1-x 0 0 x-1| | 0 0 0 x-1|
看了半天没看懂 是怎么转化的,
上图作废 请见此图
|x.....1...1.....1|..|x+3...1...1....1|
|1-x..x-1..1....1|=|.0....x-1..0....0|
|1-x...0..x-1...1|..|.0.....0..x-1...0|
|1-x...0...0..x-1|..|.0.....0...0..x-1|
点处为空白
问一行列式题行列式题 |x 1 1 1| |x+3 1 1 1||1-x x-1 1 1|=| 0 x-1 0 0||1-x 0 x-1 1| | 0 0 x-1 0||1-x 0 0 x-1| | 0 0 0 x-1|看了半天没看懂 是怎么转化的,上图作废 请见此图|x.....1...1.....1|..|x+3...1...1....1||1-x..x-1..1...
你这题目有问题,
但是一般像这样的题目,你可以把第二列,第三列,第四列分别加到第一列,得到这样的,
|x.....1...1...1|..|x+3...1...1.1|
|1-x..x-1..1.1| =|.2.x-1..1.1|
|1-x...0..x-1...1|..|.1.0..x-1...1|
|1-x...0...0..x-1|..|.0.0...0..x-1|
逐步简化.你提供两个行列式不等的.
这两个行列式不等的啊!
出错题了吧