名校
解题方法
1 . 设
,
,
.
(1)求证:
①
;
②
(其中
);
(2)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e36bff57bcfa86432b340e25e51d42.png)
(1)求证:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9eee1368c9dbcbc2078014089bd4e39.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da34fd3bb41aa3792fd7ded3f1202bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c972cbd63decec197aec1bdc306de67.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d797abb5de6fec40b17a2b1576c18c.png)
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名校
2 . 已知数列
的首项为1,记![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2711dcec2b499c0a8a7481fe0a301ef6.png)
.
(1)若数列
是公比为3的等比数列,求
的值;
(2)若数列
是公差为2的等差数列,①求证:
;②求证:
是关于
的一次多项式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2711dcec2b499c0a8a7481fe0a301ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0637a42313e1914a6fb1cadf1afda4.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d2775b6bd0885b697afb4209993fa.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2fc1d897837062f069747d9de5c88f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a95cb9161333c191b3e33d76139ee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2021-04-23更新
|
670次组卷
|
3卷引用:江苏省苏州十中、三中2020-2021学年高二下学期期中数学试题
名校
3 . (1)设
为虚数单位,求
的实部;
(2)计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18abfd9441f24a5fbd1b7e7d5cd1aab.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e71d0503b3feda569aeeb1036876d9c.png)
您最近一年使用:0次
2021-01-26更新
|
775次组卷
|
2卷引用:北京一零一中学2020-2021学年高二上学期期末考试数学试题
4 . 对任意
,定义
,其中
,
为正整数.
(1)求
,
的值;
(2)求证:
;
(3)设
是否存在实数
,使得
对任意
恒成立?若存在,求出
的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9c329ac53eb2023e30a6b818c93d0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f04dc034b37dcd72288ddcbe9e9544b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ee581ca3282490206a8bc11dfb5ccf.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d11685ad5ffa1806e1317e10b2a7a677.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c2a5f8ec179b72b201c3c0a670612a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44c1ee809263c61d141e0fa93ff5a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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名校
5 . 设二项展开式
的整数部分为
,小数部分为
.
(1)计算
,
的值;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05889f40a3445ef346269aae7fbbd6f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab35850dbc661ded6456b70767cc6cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3087eeade429d61a5daf5b3921f2c95.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f42df3c4d4d6760a1f5705a2d0096e62.png)
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2020-06-30更新
|
619次组卷
|
3卷引用:江苏省扬州中学2020-2021学年高一(早培)下学期5月月考考数学试题
名校
6 . (1)在等差数列
和等比数列
中,
,是否存在正整数
,使得数列
的所有项都在数列
中,若存在,求出所有的
,若不存在,说明理由;
(2)已知当
时,有
,根据此信息,若对任意
,都有
,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf82c1e9501358a78d5dde6f32fd2d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)已知当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358b212c1a075d80c221c0df5b72c8d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1e39dc65e132fa83c02cd0d91168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358b212c1a075d80c221c0df5b72c8d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ef8f0a683e12d585877db46d28933b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e35eeaabd951fb09b2926807da3685b.png)
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