名校
解题方法
1 . 设抛物线
,
满足
,过点
作抛物线
的切线,切点分别为
.
(1)求证:直线
与抛物线
相切;
(2)若点
坐标为
,点
在抛物线
的准线上,求点
的坐标;
(3)设点
在直线
上运动,直线
是否恒过定点?若恒过定点,求出定点坐标;若不存在,请说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c21239c5da5c70d3792b84f0c8f105f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca7bc9ba5477742e231e77886f86542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa0a0bcfec3998f1314dca608b5bcfde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf40bad1cc89311930cce356672354.png)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68fe5e7b2a80a04144e5b6d85491bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1423eeb205b7f919f0680254527af867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4487158caafb0fe55ec5c7d0731049b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2020-02-29更新
|
707次组卷
|
3卷引用:上海市复兴中学2022-2023学年高二下学期期中数学试题
上海市复兴中学2022-2023学年高二下学期期中数学试题上海市上海交通大学附属中学2019-2020学年高二上学期期末数学试题(已下线)专题30 圆锥曲线求过定点大题100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)
名校
2 . 已知抛物线
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
,焦点
,如果存在过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7273dc522e15b8d891694f04a9d09ddb.png)
的直线
与抛物线
交于不同的两点
.
,使得
,则称点
为抛物线
的“
分点”.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/72cf49b2-fee2-4f6b-9d0d-fbc3e0aa6db0.png?resizew=157)
(1)如果
,直线
:
,求
的值;
(2)如果
为抛物线
的“
分点”,求直线
的方程;
(3)证明点
不是抛物线
的“2分点”;
(4)如果![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7273dc522e15b8d891694f04a9d09ddb.png)
是抛物线的“2分点”,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b75ed10db4b9747a4b6d865b774f6b6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26befbc7778513216d748f4cd1be62f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7273dc522e15b8d891694f04a9d09ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdd7ee09f5de6dd93c492e880be66a1.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff3cb9e10f611f419e2d0b577425256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/72cf49b2-fee2-4f6b-9d0d-fbc3e0aa6db0.png?resizew=157)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86da611d6a2f3cac3426d5e06d24947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9876c27999917304938897d703ab0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86da611d6a2f3cac3426d5e06d24947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)证明点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86da611d6a2f3cac3426d5e06d24947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(4)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7273dc522e15b8d891694f04a9d09ddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdd7ee09f5de6dd93c492e880be66a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
您最近一年使用:0次
名校
3 . 动圆
与圆
相外切且与
轴相切,则动圆
的圆心的轨迹记
,
(1)求轨迹
的方程;
(2)定点
到轨迹(1)
上任意一点的距离
的最小值;
(3)经过定点
的直线
,试分析直线
与轨迹
的公共点个数,并指明相应的直线
的斜率
是否存在,若存在求
的取值或取值范围情况.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2b1f4120365cb6ee4925fe417563f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a203d0478f8390fa2b346500ccb2b63.png)
(3)经过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1657d4cc1ba84a620ac9f0336a99df1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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4 . 已知
内接于抛物线
,焦点
是
的垂心,则点
的坐标_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd2981bf2261343f905ec1b5355a3c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
您最近一年使用:0次
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5 . 已知
,
,则
的元素个数是____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8535471225caa110c5d9c3e8935b804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90a3ee234e46bc6c32bc2f9a309b6d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
您最近一年使用:0次
2020-02-01更新
|
150次组卷
|
2卷引用:上海市复兴高级中学2017-2018学年高一上学期期中数学试题
名校
6 . 已知抛物线
上有两个点
,
,若直线
的斜率为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b54e384a072508d4754e0f1636f8f66.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5590fa7c70bd0a95eb7179a39d2157f6.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2913f8d730167b2bc9bbbbf809de4b1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b54e384a072508d4754e0f1636f8f66.png)
您最近一年使用:0次
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7 . 已知圆
,抛物线的顶点在原点,焦点为圆心F,过F引倾斜角为
的直线l,l与抛物线和圆依次交于A,B,C,D四点,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed61409d0bfd62d0401a33f2a0e5713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a5e1754c3e1d0485c0a0539b6a81e6.png)
成等差数列,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae702ff07f43df4d74e599ac23aa860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed61409d0bfd62d0401a33f2a0e5713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a5e1754c3e1d0485c0a0539b6a81e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24b94392a78a2325a4834c2018a8e2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
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8 . 过抛物线
的焦点作一条直线交抛物线于
、
,则
为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](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/fdd4ad426bfde6014aefa100cd0a9727.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-12-07更新
|
564次组卷
|
3卷引用:上海市曹杨第二中学2017-2018学年高二下学期期中数学试题
上海市曹杨第二中学2017-2018学年高二下学期期中数学试题湖南省永州市2018-2019学年高二下学期期中考试数学试卷(已下线)专题3.2 圆锥曲线【易错题型专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)
9 . 已知直线
与抛物线
恰有一个公共点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae819ed48d7a709c59451d900270014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb3b9aab72de273ba2f38c9624e94ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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10 . 已知直线
与圆锥曲线C相交于A,B两点,与
轴、
轴分别交于D、E两点,且满足
.
(1)已知直线
的方程为
,且A的横坐标小于B的横坐标,抛物线C的方程为
,求
的值;
(2)已知双曲线
,求点D的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/2e5a0257f0c256135b8450b945eb42ba.png)
(1)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c30fd97fafb3779aa4f4660f41e2939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32705e629d8b9187b53efeee6605af15.png)
(2)已知双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cea7798d6b80e2b78d9944ef6bd660.png)
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