题目内容
化简
(1)
×(
-
)
(2)
-
-
+(
-2)0+
.
(1)
| 8 |
| 2 |
|
(2)
| 18 |
|
| ||||
|
| 3 |
(1-
|
(1)原式=
-
=4-2
=2;
(2)原式=3
-
-(1+
)+1+|1-
|
=3
-
-1-
+1+
-1
=
-1.
| 16 |
| 4 |
=4-2
=2;
(2)原式=3
| 2 |
| 3 |
| 2 |
| 2 |
| 2 |
| 2 |
=3
| 3 |
| 3 |
| 2 |
| 2 |
| 2 |
| 2 |
=
3
| ||
| 2 |
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