已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
________ ,
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d93c4857eb6d875b7337941d247681bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6352928c4a258265b912eef8a04569b4.png)
更新时间:2024-01-31 11:47:26
|
相似题推荐
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】已知
,
,
展开式中,含
项的系数为19,则当含
项的系数最小时,展开式中含
项的系数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28652e52c0b02a343e618935ea625cbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e638305139b5f2fb9f6f432b8a2e4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61526d17d59d9319fbebcb194da1910.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
的展开式中,各项系数之和为128,则展开式中含
项的系数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13f0dd5e389ec802184d246932ed69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dfb96aed873e9186082ba9412e50f36.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
【推荐2】若
的展开式中各项的系数之和为
,则该展开式中
的系数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e601f1bd0218e9eb294471682ee929c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d8a0f53e63435c41bbfce4bbed27cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
名校
【推荐3】设
,
,且
展开式中各项的系数和为
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8cea6f3a00c3ce16fe682532697bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/814397354c2ae1cb08e0271305970811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce460941cf3ff54ccb6aec5085689a91.png)
您最近一年使用:0次