1 . 动点M到定点
的距离与它到直线
的距离之比为
,记点M的轨迹为曲线
.
(1)求曲线
的轨迹方程;
(2)设A,B为
的左右顶点,点
,点M关于x轴的对称点为
,经过点M的直线与直线
相交于点N,直线BM与BN的斜率之积为
.记
和
的面积分别为
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f79f66ca55064d9202b3ee76a8542de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150193befc6ea4a027990c5cf216351e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)设A,B为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9065d65bdaef4398ce0da64de6d5677b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d13fa3fd11e5c527f0ab606190c14d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d0469336f71edd52dc9148c67db052.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/86db4dd47155915907f0862acf1ae3a4.png)
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名校
2 . 正四棱柱
中,
,动点
满足
,且
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f21c7c194c5bc2986a21fd441c81495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a871156caa5d7222c7944afecf5f9ea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1c15263cbb460891a4af6a9c693060.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.若直线![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() |
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3 . (1)利用双曲线定义证明:方程
表示的曲线是焦点在直线
上的双曲线,记为曲线
;
(2)设点
在曲线
上,
在曲线
上,且满足
,求
方程;
(3)点
在
上,过点
的直线
与
的渐近线交于
,
两点,且满足
,求
(
为坐标原点)的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377a2333ff8c63cbdb20b882d6d5a7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb57bb18755127be041d346444a4743e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeebe2d626de76ae34a1a42b62a1a3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eae0d794fb0823bc1545822f2f7b8db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/548e9d7ca152d84587b14b99749a339d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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解题方法
4 . 在平面直角坐标系xOy中,点O为坐标原点,已知两点
,点M满足
,记点M的轨迹为G.
(1)求曲线G的方程:
(2)若P,C,D为曲线G上的三个动点,
的平分线交x轴于点
,点Q到直线PC的距离为1.
(ⅰ)若点Q为
重心,求点P的坐标;
(ⅱ)若
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9524211d54e798172067caf764fc67a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c7856868dd8ed815843d70396b86ee.png)
(1)求曲线G的方程:
(2)若P,C,D为曲线G上的三个动点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd601617f0ab200d5c80c37ab41d7323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3176a38aecba0ba5bdd2563b7b2e5ff6.png)
(ⅰ)若点Q为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a28ed244483ccc6728ebdc5e7fdc856.png)
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5 . 以坐标原点为圆心的两个同心圆半径分别为
和
,
为大圆上一动点,大圆半径
与小圆相交于点
轴于
于
点的轨迹为
.
点轨迹
的方程;
(2)点
,若点
在
上,且直线
的斜率乘积为
,线段
的中点
,当直线
与
轴的截距为负数时,求
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fc7bca485a94013d4f7c9409c41282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f8f37790681b8aa62ddbb44607426fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d218ae08b0d633d182a49ac15de9bcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78eba6f91d97cea1dfd73bae53e7b689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b14fa212bbddd28310d463fcdef7e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09bf6ba623953df55eb869b2b363e39.png)
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2024-04-17更新
|
1030次组卷
|
4卷引用:东北三省四城市联考暨沈阳市2024届高三下学期数学质量检测(二)
东北三省四城市联考暨沈阳市2024届高三下学期数学质量检测(二)吉林省长春市2024届向三第四次质量监测数学试卷(已下线)压轴题02圆锥曲线压轴题17题型汇总-4江苏省常州市华罗庚中学2024届高三下学期4月二模训练数学试卷
名校
解题方法
6 . 已知平面上一动点
到定点
的距离比到定直线
的距离小
,记动点
的轨迹为曲线
.
(1)求
的方程;
(2)点
为
上的两个动点,若
恰好为平行四边形
的其中三个顶点,且该平行四边形对角线的交点在第一、三象限的角平分线上,记平行四边形
的面积为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb7b76d897de678faaf8221bafe217d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beb93b19779fab3f7a6991633933a364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3687b9de2cd647ee49c4b9b01eac438a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d45bd92770adca80f9aa3d2e4b7e106a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f790a1d74e757158ccac343e5dac6af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab3e0100e6788858ab43861933dd248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab3e0100e6788858ab43861933dd248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4532e8175640973b48fa2bb4f53310.png)
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2024-04-03更新
|
1503次组卷
|
4卷引用:2024届辽宁省名校联盟高考模拟卷(调研卷)数学试题(一)
2024届辽宁省名校联盟高考模拟卷(调研卷)数学试题(一)辽宁省八市八校2024届度高三第二次联合模拟考试数学试题(已下线)专题8.4 抛物线综合【八大题型】(已下线)重难点14 圆锥曲线必考压轴解答题全归类【十一大题型】(举一反三)(新高考专用)-1
名校
7 . 已知椭圆
,双曲线
(
,
),椭圆
与双曲线
有共同的焦点,离心率分别为
,
,椭圆
与双曲线
在第一象限的交点为
且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8210484dd6815b5bebc7b22f1389cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ab2caccd742eb636bd8378661a8807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b967232e28ad0d453adc66676bdf8b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f1ea30341eb5d584710c3aebc64ce8.png)
![](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/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7285470bf401f5edaac641234ee6ff6a.png)
A.若![]() ![]() |
B.![]() ![]() |
C.![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-01-15更新
|
550次组卷
|
5卷引用:辽宁省葫芦岛市2023-2024学年高二上学期1月普通高中学业质量监测考试数学试题
8 . 已知平面直角坐标系中,动点
到
的距离比
到
轴的距离大1.
(1)求动点
的轨迹
的方程;
(2)过
且斜率为
的直线与轨迹
交于
,
两点,
,
.
①求
的值;
②若
,
,且满足直线
和直线
的斜率之和恒为0,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35366652793f9994cc34b40d9d9af59a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b0ba14e41e306e5633ad4bf1cdedd8.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349109e1d324c60a977c98bc30ec9973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 在平面直角坐标系
内,已知定点
,定直线
,动点P到点F和直线l的距离的比值为
,记动点P的轨迹为曲线E.
(1)求曲线E的方程.
(2)以曲线E上一动点M为切点作E的切线
,若直线
与直线l交于点N,试探究以线段MN为直径的圆是否过x轴上的定点.若过定点.求出该定点坐标;若不过,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3399fa4e7e0301774ae2aadf2d36701b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
(1)求曲线E的方程.
(2)以曲线E上一动点M为切点作E的切线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
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2024-01-10更新
|
618次组卷
|
3卷引用:辽宁省辽阳市2024届高三上学期期末数学试题
10 . 动点P到定点
的距离和它到直线l:
的距离的比是常数
,设点P的轨迹为曲线C.
(1)求曲线C的方程;
(2)已知O为坐标原点,与x轴不垂直的直线l与曲线C交于A,B两点,若曲线C上存在点P,使得四边形
为平行四边形,证明:
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求曲线C的方程;
(2)已知O为坐标原点,与x轴不垂直的直线l与曲线C交于A,B两点,若曲线C上存在点P,使得四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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2023-11-11更新
|
400次组卷
|
4卷引用:辽宁省抚顺市六校2023-2024学年高二上学期期中考试数学试题