题目内容
化简
(1)
+(
)2-
(2)3(
-π)0-
+(-1)2011.
(1)
| 8 |
| 3 |
| 1 |
| 3 |
| 18 |
(2)3(
| 3 |
| ||||
|
(1)原式=2
+3-
=
+3;
(2)原式=3×1-(
-
)-1
=3-2+
-1
=
.
| 2 |
| 2 |
=
| 2 |
(2)原式=3×1-(
|
|
=3-2+
| 3 |
=
| 3 |
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