题目内容
计算:
+(
+
)+(
+
+
)+(
+
+
+
)+…+(
+…+
)=______.
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 3 |
| 1 |
| 4 |
| 2 |
| 4 |
| 3 |
| 4 |
| 1 |
| 5 |
| 2 |
| 5 |
| 3 |
| 5 |
| 4 |
| 5 |
| 1 |
| 2004 |
| 2003 |
| 2004 |
原式=
+1+1
+2+…+1001
=
=1003503.
故答案为:1003503.
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
=
2003(
| ||||
| 2 |
=1003503.
故答案为:1003503.
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