解题方法
1 . 设数列
中,
(a为非零实数),则数列
的通项为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85cc4b12b2d4b577233f34c5b101e270.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f832a10c7705d514072ffc7ce53fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85cc4b12b2d4b577233f34c5b101e270.png)
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2 .
为正整数列,满足
为
的最小素因子,
,构成集合A,P为所有质数构成的集合,则集合
的最小元素为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957946f17b58b1565f6dd4f77271f3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f987fe0fdcf2b38153fe7390b48012f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da18ad56af5e38b1a5b73f44ba198fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a784125bf7ffd86d8681c2c1a3cacf4d.png)
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3 . 设m为正整数,且
,求所有的实数组
,使得
,对所有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03911e9977b919fc80456105df934ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20aa97f3d4fa393338cda3e4a89d1633.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0e3b00fe47801afb53ec56706c21a.png)
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名校
解题方法
4 . 已知如图椭圆
的左右顶点为
、
,上下顶点为
、
,记四边形
的内切圆为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/3630e7f0-97cb-442f-bb84-9b629835c2bc.png?resizew=233)
(1)求圆
的标准方程;
(2)已知P为椭圆
上任意一点,过点P作圆
的切线分别交椭圆
于M、N两点,试求三角形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f036026cd92e9ad059c3f22a7658638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e5d91f4f631c580c155eba8c92bda4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/3630e7f0-97cb-442f-bb84-9b629835c2bc.png?resizew=233)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)已知P为椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
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解题方法
5 . 求证:对任意的
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209559aca6bf32705588b6a40e0b7320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129dcd8a7c5e024790ea5f08712b3ce2.png)
您最近一年使用:0次
名校
6 . 设双曲线
的中心为O,右焦点为F,点B满足
.若在
的右支上存在一点A,使得
且
,则
离心率的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e372bcb0f24754658b568c025b4488b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92de747691a74213071dafd9aa55fcba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6fbe26a99b03b467a2672aecf5038c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
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2021-09-16更新
|
655次组卷
|
3卷引用:全国高中数学联赛模拟试题(十一)
7 . 已知定义在
上的函数
满足
,若
,则方程
的整数解的个数为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c807c666caab2d5b917e090828443e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb66be0e914347d4fa3b15aa045693dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18ca67c2770b98f36dbfd802595a95.png)
您最近一年使用:0次
解题方法
8 . 在平面直角坐标系
中,点集
.从K中随机取出五个点,则其中有四点共线或四点共圆的概率为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1f13766c7fd1d9edf1673158102a2f.png)
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9 . 在
中,
所对的旁切圆与边
相切于点D,
所对的旁切圆与边
相切于点E.若
,则
面积的最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55c2080e2f6fae88c03fa5b9b238ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
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10 . 已知正实数
满足
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21aea4b9cdf4b1c51f1e770e74370b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f560f01fd966becba43e5c1baf6062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdfc58fb5609724783d8e9ec311378c.png)
您最近一年使用:0次