1 . 已知
,曲线
.
(1)若曲线
为圆,且与直线
交于
两点,求
的值;
(2)若曲线
为椭圆,且离心率
,求椭圆
的标准方程;
(3)设
,若曲线
与
轴交于
,
两点(点
位于点
的上方),直线
与
交于不同的两点
,
,直线
与直线
交于点
,求证:当
时,A,
,
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331f0fd16d6cb92791975b9c2d472a0f.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026808536f6b6d265c778e23836fbf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234e7679481ec0d01c915b7fbb71891d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66884efff7400f92b530d69d029778d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/76c1c20ae4c40deddf64491da05c9deb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f356149908b04a47af086974b1ac697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
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3卷引用:上海市松江一中2022-2023学年高二下学期5月月考数学试题
2 . 已知点A,B为椭圆
上的两个动点,点O为坐标原点,直线
与
的斜率之积为
,x轴上存在关于原点对称的两点M,N,使得对于线段
上的任意点P,都有
的最小值为定值,则此定值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1b3031d7393a63719166285314d73f.png)
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1648次组卷
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4卷引用:吉林省长春市第二实验中学2023-2024学年高二下学期开学测试数学试题
吉林省长春市第二实验中学2023-2024学年高二下学期开学测试数学试题浙江省临海、新昌两地2023届高三下学期5月适应性考试(二模)数学试题(已下线)模块六 专题6易错题目重组卷(浙江卷)(已下线)专题03 圆锥曲线中的定点定值问题(两大题型)
名校
解题方法
3 . 已知正方体
的棱长为2,点P在正方形ABCD内运动(含边界),则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/29b626d1-eb5a-4733-b26f-b764f92f96df.png?resizew=142)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/18/29b626d1-eb5a-4733-b26f-b764f92f96df.png?resizew=142)
A.存在点P,使得![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-02-17更新
|
1363次组卷
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4卷引用:河北省唐山市2022-2023学年高二上学期期末数学试题
河北省唐山市2022-2023学年高二上学期期末数学试题(已下线)模块四 专题1 重组综合练(河北)期末终极研习室(高二人教A版)(已下线)第一章 空间向量与立体几何(压轴题专练,精选20题)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第一册)广东省东莞市东华高级中学2022-2023学年高二下学期期中考试数学试卷
22-23高三·河北·阶段练习
名校
4 . 已知点
到点
的距离比到
轴的距离大1,记点
的轨迹为
.直线
与椭圆
相切.
与
在第一象限的交点为
,且曲线
在点
处的切线斜率乘积为
.设
的上,左顶点为
.将直线
与
围成的图形绕
轴旋转
形成一个旋转体,则该旋转体的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/7769b4ee449622c2b860cb765409f109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdba36d4c2d4acedbd44d08e4c04127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18839917069b4ce917a77b653c85003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384b3248b6c1f724dbe653fb1c84153.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 如图,已知正方体
的棱长为
为正方形底面
内的一动点,则下列结论正确的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/dd15d908-f3d6-4224-b870-6c2ac39373a4.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5420c8c4cf105205deb4a1b8327e6de8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/dd15d908-f3d6-4224-b870-6c2ac39373a4.png?resizew=158)
A.三棱锥![]() |
B.存在点![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
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|
978次组卷
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2卷引用:贵州省贵阳市“三新”改革联盟校2022-2023学年高二上学期月考(六)数学试题
名校
解题方法
6 . 已知直线
与直线
相交于点P,其中
,设动点P的轨迹为曲线
,直线
,恒过定点C.
(1)写出C的坐标,并求曲线
的方程;
(2)若直线
与曲线
交于A,B两点,在x轴上是否存在定点N,使得
恒成立?若存在,求出点N坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b99457320fb8f973b84d8125574735c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf81c7b52d3fb0c2952aef1cb078a70e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(1)写出C的坐标,并求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8280d174cb7c8535045f194be7e45ded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f6dcfcbe4a196c26e7f46679dda9a7.png)
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2022-12-02更新
|
940次组卷
|
3卷引用:四川省成都市第七中学2022-2023学年高二下学期3月月考数学(理)试题
7 . 已知直线l1:y=k1x和l2:y=k2x与抛物线y2=2px(p>0)分别相交于A,B两点(异于原点O)与直线l:y=2x+p分别相交于P,Q两点,且
.
![](https://img.xkw.com/dksih/QBM/2022/6/8/2996948554473472/2998214561636352/STEM/e63a0709-03a7-4f7e-ae37-2a2dc9d9f3a9.png?resizew=130)
(1)求线段AB的中点M的轨迹方程;
(2)求△POQ面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985a294d39f2a106aa474462ec15dbfb.png)
![](https://img.xkw.com/dksih/QBM/2022/6/8/2996948554473472/2998214561636352/STEM/e63a0709-03a7-4f7e-ae37-2a2dc9d9f3a9.png?resizew=130)
(1)求线段AB的中点M的轨迹方程;
(2)求△POQ面积的最小值.
您最近一年使用:0次
2022-06-10更新
|
1616次组卷
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7卷引用:吉林省吉林市第一中学2021-2022学年高二6月月考数学试题(理科创新班)
吉林省吉林市第一中学2021-2022学年高二6月月考数学试题(理科创新班)海南省海口市海口中学2021-2022学年高二下学期期末考试数学试题(B卷)(已下线)专题3.15 圆锥曲线中的面积问题大题专项训练(30道)-2022-2023学年高二数学举一反三系列(人教A版2019选择性必修第一册)四川省新高考五校联合体2023-2024学年高二上学期12月大联考数学试题浙江省绍兴市嵊州市2022届高三下学期5月适应性考试数学试题(已下线)第33节 圆锥曲线中的最值范围问题探究性问题-备战2023年高考数学一轮复习考点帮(全国通用)(已下线)10.6 三定问题及最值(精讲)
名校
解题方法
8 . 已知长方体
中,
,
,
,
为矩形
内一动点,设二面角
为
,直线
与平面
所成的角为
,若
,则三棱锥
体积的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d399d731913a563e291b817831a0c678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa3205b1df826d63914dcb55bb3ab43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc0e87de02d9fe868bed6846f0709c8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-05-16更新
|
2267次组卷
|
6卷引用:上海市格致中学2023-2024学年高二下学期期中考试数学试题
上海市格致中学2023-2024学年高二下学期期中考试数学试题江西省南昌市2022届高三第三次模拟测试数学(理)试题(已下线)专题23 立体几何中的压轴小题-1(已下线)专题07 立体几何小题常考全归类(精讲精练)-1(已下线)专题7-2 立体几何压轴小题:角度与动点、体积(讲+练)-2(已下线)第二章 立体几何中的计算 专题三 空间体积的计算 微点4 四面体体积公式拓展综合训练【培优版】
9 . 在平面直角坐标系中,
为坐标原点,向量
绕原点逆时针旋转
得到
,则有旋转变换公式
.已知曲线
绕原点逆时针旋转
得到曲线
.
(1)求曲线
的方程;
(2)
,
为曲线
右支上任意两点,且直线
过曲线
的右焦点
,点
,延长
分别与曲线
交于
两点.设直线
和
的斜率都存在,分别为
与
,问是否存在实数
,使得
恒成立?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a015aa180283116436d7f5e56c7e697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a93454d821ab91d4d49bafad55bdbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7a19dcf6230a31d8637ea0049dc7b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eaf3e31ec674e01a3f2ea2a2d66d45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e4a3aea4b4b0d87c014030a6ff9027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f726eafc3e7ce9970115202f5122b964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5bfa05232c26797f61d439b6d42ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713eca8f1e6d98069148323acf50fd0b.png)
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2022-05-10更新
|
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3卷引用:湖北省部分县市区省级示范高中温德克英协作体2023-2024学年高二上学期期末综合性调研考试数学试题
湖北省部分县市区省级示范高中温德克英协作体2023-2024学年高二上学期期末综合性调研考试数学试题重庆市第一中学校2022届高三下学期5月月考数学试题(已下线)专题32 一类与斜率和、差、商、积问题的探究-2
解题方法
10 . 在直三棱柱
中,
,
,
为该三棱柱表面上一动点,若
,则
点的轨迹长度为( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90e17995e2f71e297d94ae51c7e5b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c00af79afce39d1715699a59e3fff7.png)
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A.![]() | B.![]() |
C.![]() | D.![]() |
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