在
的二项展开式中,所有项的二项式系数之和为256,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
_______ ,
项的系数等于________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bdba0100b54ee175742a40246b4f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
更新时间:2020-04-13 07:45:57
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填空题-单空题
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适中
(0.65)
名校
解题方法
【推荐1】设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55bebc8db3bba807a00352dabe7311e.png)
______ ,
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1baff3ce76a3d9bb4bc0401d6881315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55bebc8db3bba807a00352dabe7311e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
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填空题-双空题
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适中
(0.65)
名校
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【推荐1】已知
展开式的二项式系数之和为256,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
______ ;展开式中常数项为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af1b304116b35ab61a2ffdd4243e61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
【推荐2】关于二项式
及其展开式,有下列命题:①该二项展开式中非常数项的系数和是-1;②该二项展开式中第六项为
;③该二项展开式中不含有理项;④当
时,
除以100的余数是1.其中,正确命题的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde55ac5df13ce2af9f6428917cc642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f6336bf2f5671f8c57c9b28e82177e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2acfbf5f2f0f3ecd9b7d80d77dada4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde55ac5df13ce2af9f6428917cc642.png)
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