我们可以用符号
表示代数式,
是正整数.我们规定:当
为奇数时,
,当
为偶数时,
.例如:
,
.设
,
,
,…,
,
.依此规律,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f356c64a7b425e666c49b52a75dd8d4.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3bf2007903adc64d089a054c2284a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21db4cf224f120fa5488b19ce09c00bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f65e0f3b189d9dc5c8e7f83b3efb99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8ffc52e76bb60d1946fae1e40e9219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816cd9cc216b3fc7b5c124826af6d4c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fbe21e6229f30904822076d34022b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61cadc139f2769c708295746241d1e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bf3cc4d906ccaf6116c9f7dab51c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab59ee2eea8f966b340f7688aef3a276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f356c64a7b425e666c49b52a75dd8d4.png)
更新时间:2024-01-26 21:29:55
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【推荐1】我国古代数学家杨辉发现了如图所示的三角形,我们称之为“杨辉三角”,它具有一定的规律性.从图中取一列数:1,3,6,10,15,…,我们把第一个数记为
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【推荐2】通过观察下面每个图形中5个实数的关系,得出第四个图形中y的值是_______ .
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