题目内容
计算:
+
=______.
| x |
| x-2 |
| 2 |
| 2-x |
原式=
-
=
=1.
| x |
| x-2 |
| 2 |
| x-2 |
| x-2 |
| x-2 |
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相关题目
计算:
+
的结果是( )
| x |
| x-2 |
| 2 |
| 2-x |
| A、x-2 | B、1 |
| C、1-x | D、2-x |
题目内容
| x |
| x-2 |
| 2 |
| 2-x |
| x |
| x-2 |
| 2 |
| x-2 |
| x-2 |
| x-2 |
| x |
| x-2 |
| 2 |
| 2-x |
| A、x-2 | B、1 |
| C、1-x | D、2-x |