题目列表(包括答案和解析)
| 1 | ||
|
| 2 |
| 1 | ||||
|
| 3 |
| 2 |
| 1 | ||||
|
| 4 |
| 3 |
| 1 | ||||
|
| 2006 |
| 2005 |
| 1 | ||||
|
| 2007 |
| 2006 |
| 1 | ||
|
| 1 | ||||
|
| 1 | ||||
|
| 1 | ||||
|
| 1 | ||||
|
| 2007 |
| 1 | ||
|
| 2 |
| 1 | ||||
|
| 3 |
| 2 |
| 1 | ||||
|
| 4 |
| 3 |
| 1 | ||||
|
| 2006 |
| 2005 |
| 1 | ||||
|
| 2007 |
| 2006 |
| 1 | ||
|
| 1 | ||||
|
| 1 | ||||
|
| 1 | ||||
|
| 1 | ||||
|
| 2007 |
观察下列分母有理化的运算:
=-1+
,
=-
+
,
=-
+
,…,
=-
+
,
=-
+![]()
利用上面的规律计算:
(
+
+
+…+
+
)(1+
)
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