题目内容
计算题
(1)
-
-(
)2
(2)
+|
-2|+(sin45°)-1.
(1)
| 4 |
| (-4)2 |
| 3 |
(2)
| 1 | ||
|
| 2 |
(1)原式=2-4-3=-5;
(2)原式=
+1+2-
+(
)-1
=
+1+2-
+
=3+
.
(2)原式=
| 2 |
| 2 |
| ||
| 2 |
=
| 2 |
| 2 |
| 2 |
=3+
| 2 |
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题目内容
| 4 |
| (-4)2 |
| 3 |
| 1 | ||
|
| 2 |
| 2 |
| 2 |
| ||
| 2 |
| 2 |
| 2 |
| 2 |
| 2 |