题目内容
(1-
)×(1-
)×(1-
)×…×(1-
)
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 100 |
分析:把每个括号内的结果先求出来,然后通过约分简算,即可得出结果.
解答:解:(1-
)×(1-
)×(1-
)×…×(1-
),
=
×
×
×…×
,
=
.
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 100 |
=
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 4 |
| 99 |
| 100 |
=
| 1 |
| 100 |
点评:仔细观察,选择合适的方法解答.
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