题目内容
1-
-
-
-…-
.
| 1 |
| 10 |
| 1 |
| 100 |
| 1 |
| 1000 |
| 1 |
| 100…00 |
1-
-
-
-…-
,
=1-0.1-0.01-0.001-…-0.00…01,
=1-(0.1+0.01+0.001+…+0.00…01),
=1-0.111…11,
=0.888…89.
| 1 |
| 10 |
| 1 |
| 100 |
| 1 |
| 1000 |
| 1 |
| 100…00 |
=1-0.1-0.01-0.001-…-0.00…01,
=1-(0.1+0.01+0.001+…+0.00…01),
=1-0.111…11,
=0.888…89.
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