1 . 已知函数
在定义域内有两个不同的零点
,.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e691e5d64f7bad4e1c8b88a7bd06d8.png)
(2)已知
,若存在
,不等式
对任意的
总成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8455b635d88ac4725388276171e401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e691e5d64f7bad4e1c8b88a7bd06d8.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a09145206ea1060dbba927a9d12569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a994d7c2cc2284c69d1a90fe78814056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
2 . 如图,空间四面体
中,
,二面角
的大小为
,在平面
内过点B作AC的垂线l,则l与平面
所成的最大角的正弦值为________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa18c2a78c400c80a5760743f31771c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6d1c5eace748465b2dad5065f5111c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
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6卷引用:浙江省台州市2022届高三下学期4月教学质量评估数学试题
浙江省台州市2022届高三下学期4月教学质量评估数学试题(已下线)考点18 空间中的角度和距离问题-2-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)湖北省二十一所重点中学2023届高三上学期第二次联考数学试题(已下线)第七章 重难专攻(七)?立体几何中的综合问题 讲(已下线)考点16 立体几何中的最值问题 2024届高考数学考点总动员【练】(已下线)第二章 立体几何中的计算 专题一 空间角 微点5 直线与平面所成角综合训练【基础版】
名校
解题方法
3 . 如图,若正方体的棱长为2,点
是正方体
的底面
上的一个动点(含边界),
是棱
的中点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/28/b8fdaf1a-be9f-4764-8968-755fa3265c06.png?resizew=173)
A.若保持![]() ![]() ![]() ![]() |
B.三棱锥![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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解题方法
4 . 已知椭圆
:
的离心率为
,其左、右焦点为
、
,过
作不与
轴重合的直线
交椭圆
于
、
两点,
的周长为8.
(1)求椭圆
的方程;
(2)设线段
的垂直平分线
交
轴于点
,是否存在实数
,使得
?若存在,求出
的值;若不存在,请说明理由.
(3)以
为圆心4为半径作圆,过
作直线
交圆
于
、
两点,求四边形
的面积的最小值及取得最小值时直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ea1c3fe8431260ecb8dffcdae8d570.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/27/41338274-ca1d-4cfd-99fa-8b0a858f3b31.png?resizew=202)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b786a819ee6702edfc2fa26123e98ed9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73914b8189da50ca10a629b52010f9eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3e029070ad0d2ce680d5336ed7150a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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5卷引用:浙江省衢温“5+1”联盟2022-2023学年高二上学期期中联考数学试题
浙江省衢温“5+1”联盟2022-2023学年高二上学期期中联考数学试题广东五校2022-2023学年高二下学期期末联考数学试题(已下线)专题突破卷23 圆锥曲线大题归类(已下线)重难专攻(十一)?圆锥曲线中的证明,探究性问题(核心考点集训)江苏省扬州市邗江区邗江中学2023-2024学年高二上学期期中数学试题
5 . 已知圆
,圆上有一动点P,线段PF的中垂线与线段PE交于点Q,记点Q的轨迹为C.第一象限有一点M在曲线C上,满足
轴,一条动直线与曲线C交于A、B两点,且直线MA与直线MB的斜率乘积为
.
(1)求曲线C的方程;
(2)当直线AB与圆E相交所成的弦长最短时,求直线AB的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d980af5cd3091bdfbbd5a2a47c0595d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7e98fa4da2def9eebd11a349b83e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1a28d07fb1904c65774987073d6f9d.png)
(1)求曲线C的方程;
(2)当直线AB与圆E相交所成的弦长最短时,求直线AB的方程.
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5卷引用:浙江省七彩阳光联盟2022-2023学年高二上学期期中数学试题
浙江省七彩阳光联盟2022-2023学年高二上学期期中数学试题福建省厦门第二中学2022-2023学年高二上学期第二次阶段考(12月)数学试题重庆市四川外语学院重庆第二外国语学校2024届高三上学期九月测试数学试题(已下线)考点18 解析几何中的范围、最值问题 2024届高考数学考点总动员【练】(已下线)专题03 圆锥曲线的方程(3)
名校
6 . 单位向量
,
,
的两两夹角为
,若实数
,
,
满足
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ccfda9afde4441cfd1d4df5fe9622d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/145ec8e9ef187afb4bf6d27a8ab8be22.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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名校
解题方法
7 . 过点
作斜率为
的直线
交圆
于
,
两点,动点
满足
,若对每一个确定的实数
,记
的最大值为
,则当
变化时,
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d26e5a4e3472fd6b1dbc1ea628a3fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3625e0824b902d21fc6ec07b6881b4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffcef281db0f6e2f9b0b9580fa6eaba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca9469ed1175cf3b1defc3f8eb5d810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca9469ed1175cf3b1defc3f8eb5d810.png)
A.1 | B.![]() | C.2 | D.![]() |
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4卷引用:浙江省台州市名校联盟2022-2023学年高二上学期11月五科联赛数学试题
浙江省台州市名校联盟2022-2023学年高二上学期11月五科联赛数学试题广东省广州市广东实验中学2024届高三上学期大湾区数学冲刺卷(二)(已下线)单元高难问题02数学思想方法在解决与圆有关问题中的应用(各大名校30题专项训练)(原卷版)(已下线)专题2 与圆有关的最值问题【练】(压轴小题大全)
解题方法
8 . 坐标系建立的方式不同,会导致曲线方程形式上的不同,如初中学过的反比例函数的图象也是双曲线.已知形如
的函数图象均为双曲线,则双曲线
的一个焦点坐标为
您最近一年使用:0次
9 . 如图,在平面直角坐标系
中,椭圆
过点
,且离心率为
,设椭圆
的右顶点为
,点
,
是椭圆
上异于
,
的两个动点,记直线
,
的斜率分别为
,
,且
.
(1)求证:直线
过定点
;
(2)设直线
,
相交于点
,记
,
的面积分别为
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/784f80ff0ce3f794b179f967cb31420f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/6/ac178938-15e0-4b62-a577-717c83e45f16.png?resizew=173)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8059a935a2325a9e7abbcbf56aa167f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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4卷引用:浙江省台州市名校联盟2022-2023学年高二上学期11月五科联赛数学试题
浙江省台州市名校联盟2022-2023学年高二上学期11月五科联赛数学试题广东省惠州市博罗县2023-2024学年高二上学期期末数学试题广东省惠州市2023-2024学年高二上学期1月期末数学试题(已下线)第2章 圆锥曲线(压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)
名校
10 . 如图,在五面体
中,底面
为矩形,
和
均为等边三角形,
平面
,
,
,且二面角
和
的大小均为
.设五面体
的各个顶点均位于球
的表面上,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/9922bed7-bbff-4246-a837-64a6972fd2e9.png?resizew=215)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a04a2b317c5a6b8b7eb5d760fbd818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e2bf04b646d77e272034198d21a1e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5219d5b2c63eded763670e5800dd67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9abe6e8d1f4f1e8bdc46ddbae0cd789.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ba310682e25a0c6d488e6aff816614.png)
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2022-10-11更新
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6卷引用:浙江省杭州学军中学2022-2023学年高二上学期期中模拟数学试题
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