题目内容
计算:(1-
)÷(
)
| 1 |
| m-2 |
| 3-m |
| 2m-4 |
原式=
•
,
=
•
,
=-2.
故答案为-2.
| m-2-1 |
| m-2 |
| 2m-4 |
| 3-m |
=
| m-3 |
| m-2 |
| 2(m-2) |
| -(m-3) |
=-2.
故答案为-2.
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题目内容
| 1 |
| m-2 |
| 3-m |
| 2m-4 |
| m-2-1 |
| m-2 |
| 2m-4 |
| 3-m |
| m-3 |
| m-2 |
| 2(m-2) |
| -(m-3) |