题目内容
化简：
+
．
| x-1 |
| x2-1 |
| x |
| x+1 |
| x-1 |
| x2-1 |
| x |
| x+1 |
=
| x-1 |
| (x+1)(x-1) |
| x |
| x+1 |
=
| 1 |
| x+1 |
| x |
| x+1 |
=
| x+1 |
| x+1 |
=1．
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相关题目
=
=
=
=1．
名校课堂系列答案题目内容
| x-1 |
| x2-1 |
| x |
| x+1 |
| x-1 |
| x2-1 |
| x |
| x+1 |
| x-1 |
| (x+1)(x-1) |
| x |
| x+1 |
| 1 |
| x+1 |
| x |
| x+1 |
| x+1 |
| x+1 |
名校课堂系列答案