题目内容
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 32 |
| 1 |
| 512 |
| 1 |
| 1024 |
分析:分析图形中的数据可知:
=1-
,
+
=1-
,
+
+
=1-
,所以可得规律为:
+
+
+…+
=1-
.
所以此题的解为
+
+
+
+
+…+
+
=1-
=
.
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 2n |
| 1 |
| 2n |
所以此题的解为
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 32 |
| 1 |
| 512 |
| 1 |
| 1024 |
| 1 |
| 1024 |
| 1023 |
| 1024 |
解答:解:
+
+
+
+
+…+
+
,
=1-
+
-
+
-
+
-…-
+
-
,
=
.
故答案为:
.
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 16 |
| 1 |
| 32 |
| 1 |
| 512 |
| 1 |
| 1024 |
=1-
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 512 |
| 1 |
| 512 |
| 1 |
| 1024 |
=
| 1023 |
| 1024 |
故答案为:
| 1023 |
| 1024 |
点评:此题注意每次分割都是分两份,求若干个矩形的面积和也可以换个方法思考,用减法简单地计算出来.
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