题目内容
计算题
(1)|
-
|+
-
;
(2)(2
-1)2;
(3)
+
-
;
(4)(
+
)2008(
-
)2009.
(1)|
| 3 |
| 5 |
| 27 |
| 125 |
(2)(2
| 3 |
(3)
| 8 |
|
| 2 |
(4)(
| 3 |
| 2 |
| 3 |
| 2 |
(1)原式=
-
+3
-5
=2
-4
;
(2)原式=12-4
+1=13-4
;
(3)原式=2
+
-
=
;
(4)原式=[(
+
)(
-
)] 2008(
-
)=
-
.
| 5 |
| 3 |
| 3 |
| 5 |
| 3 |
| 5 |
(2)原式=12-4
| 3 |
| 3 |
(3)原式=2
| 2 |
| ||
| 8 |
| 2 |
9
| ||
| 8 |
(4)原式=[(
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
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