名校
1 . 在数列
中,对任意的
都有
,且
则下列结论正确的是( )
①.对于任意的
,都有
;
②.对于任意
,数列
不可能为常数列;
③.若
,则数列
为递增数列;
④.若
,则当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0228078a7a3d05a7643f87e04992a304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a997e07f9d75ff7ebd4d321f67252bf.png)
①.对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c967891f122c574963975c7bc2664fce.png)
②.对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
③.若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a40af859d892e1c30f300678e4a05c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
④.若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492b4cec252b0417cbec8e361718001d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f981c508441f47d416e67c885bed201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0228078a7a3d05a7643f87e04992a304.png)
A.①②③ | B.②③④ | C.③④ | D.①④ |
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4卷引用:山西省长治市第二中学校2023届高三上学期第四次月考数学试题
山西省长治市第二中学校2023届高三上学期第四次月考数学试题(已下线)模块二 数列 不等式-3(已下线)2023年北京高考数学真题变式题6-10 山东省青岛第五十八中学2023-2024学年高二上学期阶段性测试(第二次月考)数学试卷
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解题方法
2 . 在
中,
,AB=2,点D在线段AC上,且AD=2DC,
,则BC的长为________ ,
的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf03bc7996f5471db13e710a17ae618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081cb4ed8838b4f141fb1e37acad1742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
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2022-03-25更新
|
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3卷引用:山西省长治市第二中学校2021-2022学年高一下学期第一次月考数学试题
3 . 在数列
中,
,
,
,若数列
单调递减,数列
单调递增,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe7bdaaf8b0adf10bf2ef6c1255b1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af47e877c31e7399081db03cae92075.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb40dde3892bc78d3796d37e812a4f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf33b2a94eae16760d746f9b4b8dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8194a62bc60a9da9b5cf76f9dc0fa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2f03f58e3c85de45bd3fd86a8a66f7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-12-30更新
|
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2卷引用:山西省长治市第二中学校2021-2022学年高二上学期第二次月考数学试题
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4 . 如图,在
中,已知
,M为BC中点,E,F分别为线段AB,AC上动点(不包括端点),记
.
![](https://img.xkw.com/dksih/QBM/2019/12/9/2351430732464128/2352397842423808/STEM/89ea59311c43425d9ed518f550258da7.png?resizew=265)
(1)当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
时,求证:
;
(2)当
时,求四边形AEMF面积S关于
的表达式,并求出S的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d8233e9ce59f52f0e8c8ab48a3b976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eebac27f050f9311424c2ee561b94929.png)
![](https://img.xkw.com/dksih/QBM/2019/12/9/2351430732464128/2352397842423808/STEM/89ea59311c43425d9ed518f550258da7.png?resizew=265)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665626fc8e679728abb24b97b429a7c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4864c6965dce6a7575e2b79f85ee16.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c31e2fa549acd744741d24590b3fa54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
您最近一年使用:0次
2019-12-10更新
|
1198次组卷
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3卷引用:山西省长治市第二中学2019-2020学年高三11月月考数学(理)试题
山西省长治市第二中学2019-2020学年高三11月月考数学(理)试题陕西省普通高中2019-2020学年高三上学期第二次联考数学(理)试题(已下线)专题03 三角函数中的实际应用问题(第一篇)-备战2020年高考数学大题精做之解答题题型全覆盖
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5 . 已知数列
满足
,令
,则满足
的
最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3482a6fefaefa58995253a6434896a3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd545176bd127a68cf17f1a269a3662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831de7531e4b51f836a5ef44c4791198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6abfe8467a62bbc3952022c4e6e56eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.9 | B.10 | C.11 | D.12 |
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2019-12-10更新
|
820次组卷
|
7卷引用:山西省长治市第二中学2019-2020学年高三11月月考数学(理)试题
山西省长治市第二中学2019-2020学年高三11月月考数学(理)试题陕西省普通高中2019-2020学年高三上学期第二次联考数学(理)试题2020届百校联盟11月普通高中教育教学质量监测考试全国I卷理科数学(已下线)理科数学-2020年高考押题预测卷02(新课标Ⅰ卷)《2020年高考押题预测卷》(已下线)2.4等比数列(2) -2020-2021学年高二 数学课时同步练(人教A版必修5)(已下线)4.3.1 等比数列(2)-2020-2021学年高二数学十分钟同步课堂专练(人教A版选择性必修第二册)(已下线)第04讲 等比数列的概念-【帮课堂】2021-2022学年高二数学同步精品讲义(人教A版2019选择性必修第二册)
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6 . 已知函数
.
(1)判断函数
的奇偶性;
(2)是否存在这样的实数
,使
对所有的
均成立?若存在,求出适合条件的实数
的值或范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af35c13259e47f7d964d26a14227673b.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)是否存在这样的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392a844a79e54d7b1f0f95983bee47a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd0f1e3e3b41948f1b3d287c4b0cb44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 已知数列
的前
项和为
,
,且
,
为等比数列,
,
.
求
和
的通项公式;
设
,
,数列
的前
项和为
,若对
均满足
,求整数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d903b5f934389ffc24c26cf92588c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737199cec129975d79ce6b5f7d185c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381576e698a46df8c497e6b5f8346ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee4464b3b4eb6e52ee02f095aae84f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b91194ae38bc704620905958219db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1682d77f193245689f1ce9e92d6954d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee4464b3b4eb6e52ee02f095aae84f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b902874a9baf480ac3b23957b85cf002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e9e6f9b40241d132341718e48bcbd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cca3ebd10a38201939a3694cc95186a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb26cd1601fe7e76e1e2dc0b4909324a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acfcb3b766de913a834cd4aa0a7b332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2db3ce4ce543d5cd41f8bc616d7b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2019-04-10更新
|
1597次组卷
|
3卷引用:山西省长治市第二中学2019-2020学年高一下学期期末数学(理)试题
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8 . 已知a、b、c是实数,方程
的三个实数根可以作为椭圆、双曲线、抛物线的离心率,则
的取值范围是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac603c0b3d1d7fd42bd50222b6ab94d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
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2019-02-01更新
|
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2卷引用:【全国百强校】山西省长治二中2018-2019学年高二上学期期末考试数学(理)试题
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9 . 设A、B分别为双曲线
(a>0,b>0)的左、右顶点,P是双曲线上不同于A、B的一点,直线AP、BP的斜率分别为m、n,则当
取最小值时,双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f11a47ded527c091de6d7cb8875eb40.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2018-05-07更新
|
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6卷引用:山西省长治市长治学院附属太行中学2020-2021学年高二上学期期末数学(理)试题
10 . 已知数列
的前
项和
满足:
.
(1)求证:数列
是等比数列,并求数列
的通项公式;
(2)若数列
满足
,
为数列
的前
项和,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67bd36be3bb1aa5eb5db74b2a7af7f7e.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c485d7f863edc6299df64bd89d4705b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e2b779d4e1468d0cc9bb859653f618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de633c277a234e59e274ffb1f9d59718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf49305249eb983fb10c95c2287d1ee.png)
您最近一年使用:0次
2017-06-20更新
|
996次组卷
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4卷引用:山西省长治市第二中学校2021-2022学年高二上学期第二次月考数学试题