题目内容
计算:
(1)
-2
-
(2)
-
-
.
(1)
| 18 |
|
| 1 |
| 4 |
| 32 |
(2)
|
| 1 |
| 2 |
| 8a |
| 2a |
(1)原式=3
-
-
=
;
(2)原式=
-
-
=-
.
| 2 |
| 2 |
| 2 |
=
| 2 |
(2)原式=
| ||
| 2 |
| 2a |
| 2a |
=-
3
| ||
| 2 |
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题目内容
| 18 |
|
| 1 |
| 4 |
| 32 |
|
| 1 |
| 2 |
| 8a |
| 2a |
| 2 |
| 2 |
| 2 |
| 2 |
| ||
| 2 |
| 2a |
| 2a |
3
| ||
| 2 |