1 . 已知点S是圆
上任意一点,过S作x轴的垂线,垂足为H,点T满足
,记点T的轨迹为C.
(1)求轨迹C的方程;
(2)设轨迹C与x轴的交点分别为
,
,与y轴正半轴的交点为B,M是轨迹C上任意一点,且M不在坐标轴上.若直线
与直线
交于点P,直线
与直线
交于点Q.试判断
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13c02c5acb8df76da6356e504ded016.png)
(1)求轨迹C的方程;
(2)设轨迹C与x轴的交点分别为
![](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/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c2cc110e46ae4b3432814810e28bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668438e15423368cd744445e824d18a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,已知正方体
的棱长为1,点M为棱AB的中点,点P在侧面
及其边界上运动,下列命题:①当
时,异面直线
与
所成角的正切值为2;②当点
到平面
的距离等于到直线
的距离时,点
的轨迹为拋物线的一部分;③存在点P满足
;④满足
的点P的轨迹长度为
;其中真命题的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/5756826a-6630-4dab-86e8-13c016161522.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710fb03332ec8c51992c34dd70572307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0aace589f614b7cfe067ba6f4b8aaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c963323f3132ca62ba5b0b3aac66bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821309f088a175c00dc0f4828334503d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/5756826a-6630-4dab-86e8-13c016161522.png?resizew=170)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
3 . 如图,在棱长为6的正方体
中,
分别为
的中点,点
是正方形
面内(包含边界)动点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21de25a662ba9e513dee5d6e34cb237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/27/ae746dd5-b72e-4e24-8164-15998f9bd150.png?resizew=163)
A.![]() ![]() ![]() |
B.平面![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2023-06-21更新
|
1834次组卷
|
11卷引用:四川省成都市列五中学2023-2024学年高二上学期12月月考数学试题
四川省成都市列五中学2023-2024学年高二上学期12月月考数学试题四川省成都市玉林中学2023-2024学年高二上学期期末模拟数学试题(二)福建省安溪一中、养正中学、惠安一中、泉州实验中学2022-2023学年高二下学期期中联考数学试题(已下线)1.4 空间向量应用(精练)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)湖北省襄阳市第五中学2023-2024学年高二上学期新起点考试数学试题黑龙江省哈尔滨市兆麟中学2023-2024学年高二上学期期中考试数学试题辽宁省沈阳市第二中学2023-2024学年高二上学期第二次月考数学试题(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)湖北省武汉市新洲区部分学校2023-2024学年度高二上学期期末质量检测数学试卷浙江省杭州四中2023-2024学年高二上学期期末数学试题山西省临汾市浮山中学校2023-2024学年高二下学期第一次月考数学试卷
名校
解题方法
4 . 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)
您最近一年使用:0次
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
5 . 如图,P为椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0ac188b55d6377c0ab00a28f3b9296.png)
上的动点,过P作椭圆
的切线交圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3780231ff0af68a65a3d740a2c858b26.png)
于M,N,过M,N作
切线交于Q,则Q的轨迹方程为_______________ ;
的最大值为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0ac188b55d6377c0ab00a28f3b9296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6992d4a7cfa2348894f7c991ed6171c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b9e53e4677ae9e2b20d5f7ce0a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3780231ff0af68a65a3d740a2c858b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95f1a8e66ddfb0277c3efb15bf8b7ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9902b08a6e0aef5eac29c197a356320b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/de5896a5-8ca6-48a2-8ae5-bc88e615bf8e.png?resizew=219)
您最近一年使用:0次
6 . 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: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
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)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)(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)
7 . 已知曲线
的焦点是
,
、
是曲线
上不同两点,且存在实数
使得
,曲线
在点
、
处的两条切线相交于点
.
(1)求点
的轨迹方程;
(2)点
在
轴上,以
为直径的圆与
的另一交点恰好是
的中点,当
时,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a04255d62773d81bfc6989271974198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832ca3f8e3f271f86141aa14969f2fc8.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/8455657dde27aabe6adb7b188e031c11.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945e93c9f3515ded840de09a9ba81ce8.png)
您最近一年使用:0次
2019-10-23更新
|
892次组卷
|
2卷引用:四川天府名校2019-2020学年高三上学期教学第一轮联合质量测评理科数学试题
解题方法
8 . 已知定点
,定直线
,动点
到点
的距离与到直线
的距离之比等于
.
(1)求动点
的轨迹
的方程;
(2)设轨迹
与
轴负半轴交于点
,过点
作不与
轴重合的直线交轨迹
于两点
,直线
分别交直线
于点
.试问:在
轴上是否存在定点
,使得
?若存在,求出定点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3842d532ecdfd77186b3999d1357149d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
2017-09-10更新
|
608次组卷
|
2卷引用:四川省成都七中2018届高三上学期入学考试数学文试题
名校
9 . 如图,在棱长为
的正方体
中,动点
在其表面上运动,且
,把点的轨迹长度
称为“喇叭花”函数,给出下列结论:
其中正确的结论是:__________ .(填上你认为所有正确的结论序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd694ad3a4733c7c84aaa7946aeea4de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100d679291506e7d60fbd36ccf6e022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c611dd4630f9af5c94b883a037d4ac1.png)
①;②
;③
;④
其中正确的结论是:
![](https://img.xkw.com/dksih/QBM/2017/6/4/1701842381127680/1702496690167808/STEM/cf799ddf-0293-46b8-9b3b-2887f28d48db.png?resizew=257)
您最近一年使用:0次
2017-06-05更新
|
900次组卷
|
3卷引用:四川省成都市第七中学2017届高三6月1日高考热身考试数学(文)试题
四川省成都市第七中学2017届高三6月1日高考热身考试数学(文)试题四川省成都市第七中学2017届高三6月1日高考热身考试数学(理)试题(已下线)专题8.2 创新型问题 玩转压轴题-玩转压轴题,进军满分之2021高考数学选择题填空题
2011·江西宜春·三模
10 . 如图,已知直线
与抛物线
相切于点
,且与
轴交于点
,
为坐标原点,定点
的坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/1ffee7a3-d041-4eba-8735-159aee6a9f0a.png?resizew=220)
(1)若动点
满足
,求点
的轨迹
;
(2)若过点
的直线
(斜率不等于零)与(1)中的轨迹
交于不同的两点
(
在
之间),试求△OBE与△OBF面积之比的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/10/1ffee7a3-d041-4eba-8735-159aee6a9f0a.png?resizew=220)
(1)若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b924555ca17b0fb4b2e1e83afa6a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5049af0aacd6e6885d43fd814648de.png)
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