题目内容
计算:(1-
)(1-
)(1-
)…(1-
)(1-
)
| 1 |
| 22 |
| 1 |
| 32 |
| 1 |
| 42 |
| 1 |
| 20042 |
| 1 |
| 20052 |
(1-
)(1-
)(1-
)…(1-
)(1-
)=
•
•
…
=
×
=
.
| 1 |
| 22 |
| 1 |
| 32 |
| 1 |
| 42 |
| 1 |
| 20042 |
| 1 |
| 20052 |
| 22-1 |
| 22 |
| 32-1 |
| 32 |
| 42-1 |
| 42 |
| 20052-1 |
| 20052 |
| 1 |
| 2 |
| 2006 |
| 2005 |
| 1003 |
| 2005 |
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