| 3 |
| 2 |
| 5 |
| 4 |
| 9 |
| 8 |
| 17 |
| 16 |
| 257 |
| 256 |
=1+
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 256 |
=（1+1+1+1+…+1）+（
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 256 |
=8+（1-
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 128 |
| 1 |
| 256 |
=8+（1-
| 1 |
| 256 |
=8+
| 255 |
| 256 |
=8
| 255 |
| 256 |
3/2+5/4+9/8+17/16+…+257/256．
| 3 |
| 2 |
| 5 |
| 4 |
| 9 |
| 8 |
| 17 |
| 16 |
| 257 |
| 256 |
数学人气：629 ℃时间：2020-04-10 17:09:21
优质解答
=1+
=（1+1+1+1+…+1）+（
=8+（1-
=8+（1-
=8+
=8
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