题目内容
如果
=
,那么
=______.
| b |
| a |
| 3 |
| 2 |
| a-b |
| b |
∵
=
,
∴2b=3a,
∴a=
b,
∴原式=
=-
.
故答案为-
.
| b |
| a |
| 3 |
| 2 |
∴2b=3a,
∴a=
| 2 |
| 3 |
∴原式=
| ||
| b |
| 1 |
| 3 |
故答案为-
| 1 |
| 3 |
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题目内容
| b |
| a |
| 3 |
| 2 |
| a-b |
| b |
| b |
| a |
| 3 |
| 2 |
| 2 |
| 3 |
| ||
| b |
| 1 |
| 3 |
| 1 |
| 3 |