题目内容
1+
+
+
+
+
+
+
+
=______.
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 32 |
| 1 |
| 64 |
| 1 |
| 128 |
| 1 |
| 256 |
1+
+
+
+
+
+
+
+
,
=1+(1-
)+(
-
)+(
-
)+…+(
-
),
=1+1-
,
=1
.
故答案为:1
.
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 32 |
| 1 |
| 64 |
| 1 |
| 128 |
| 1 |
| 256 |
=1+(1-
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 128 |
| 1 |
| 256 |
=1+1-
| 1 |
| 256 |
=1
| 255 |
| 256 |
故答案为:1
| 255 |
| 256 |
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