题目内容
计算:
(1)
+(2010-
)0-(
)-1
(2)(
-1)2-(
)-1+
.
(1)
| 8 |
| 3 |
| 1 |
| 2 |
(2)(
| 3 |
| 1 |
| 2 |
| 4 | ||
|
(1)原式=2
+1-2
=2
-1;
(2)原式=(
)2-2
+1-2+
=3-2
-1+2(
-1)
=3-2
-1+2
-2
=0.
| 2 |
=2
| 2 |
(2)原式=(
| 3 |
| 3 |
4(
| ||||
(
|
=3-2
| 3 |
| 3 |
=3-2
| 3 |
| 3 |
=0.
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