1/(x-y)与1/(y-x)通分
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 01:42:36
![1/(x-y)与1/(y-x)通分](/uploads/image/z/13428409-49-9.jpg?t=1%2F%28x-y%29%E4%B8%8E1%2F%28y-x%29%E9%80%9A%E5%88%86)
1/(x-y)与1/(y-x)通分
1/(x-y)与1/(y-x)通分
1/(x-y)与1/(y-x)通分
1/(x-y)
1/(y-x)=-1/(x-y)
将负号提出去
1/x-y
-1/x-y
一般有如下两种情况:
1/(x-y)+1/(y-x)
= 1/(x-y) - 1/(x-y)
= 0
1/(x-y) - 1/(y-x)
= 1/(x-y) + 1/(x-y)
= 2 / (x-y)