二项式
的展开式中第5项为常数项,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
___________ ,系数最大的项是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b12af9f76f37024f3756e644de0315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
更新时间:2022-01-26 19:20:21
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【推荐1】二项式
的展开式中的常数项是___________ .(用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24978521987a017b83b5d24de54ffcdf.png)
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适中
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【推荐2】若二项式
的展开式中,第5项是常数项,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
___________ ,该展开式中的各项系数之和为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e198007eb295f2f805ea0a85b4b7235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
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解题方法
【推荐1】已知
的展开式中常数项为
,则展开式中
项的系数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41d3107d909605dc4c04ce6bb970e9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d800f03de80068a1172beac3a2c75587.png)
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名校
【推荐2】已知多项式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c60e51223475042539b6c4b38c8f88.png)
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fc42c7adb94c0cf043c935fbd46112.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c60e51223475042539b6c4b38c8f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49872df8a124a0a5c1860bb422ead9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5e2b85f884b7db4bb4f21e86755e8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fc42c7adb94c0cf043c935fbd46112.png)
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