解题方法
1 . 已知抛物线C:y2=2x,过点E(a,0)的直线l与C交于不同的两点P(x1,y1),Q(x2,y2),且满足y1y2=﹣4,以Q为中点的线段的两端点分别为M,N,其中N在x轴上,M在C上,则a=_____ .|PM|的最小值为_____ .
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解题方法
2 . 已知圆
,动点
,线段QF与圆F相交于点P,线段PQ的长度与点Q到y轴的距离相等.
(Ⅰ)求动点Q的轨迹W的方程;
(Ⅱ)过点
作两条互相垂直的直线与W的交点分别是M和N(M在N的上方,A,M,N为不同的三点),求向量
在y轴正方向上的投影的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ef887a4428483547d4e58451548ba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c12584c1f9e8174c53d17a3363d18ea.png)
(Ⅰ)求动点Q的轨迹W的方程;
(Ⅱ)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a6be776cdd229e5c1339265b23624a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c973e310e577bd11972a15e81c206b0.png)
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2020-06-09更新
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3卷引用:2020届河南省六市(南阳市、驻马店市、信阳市、漯河市、周口市、三门峡市)高三第二次联合调研检测数学(文科)试题
名校
解题方法
3 . 已知抛物线
,焦点记为
,过点
作直线
交抛物线于
,
两点,则
的最小值为________ .
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/7203604385ef3065b52149d740959b27.png)
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2020-06-08更新
|
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4卷引用:浙江省宁波市镇海中学2018届高三下学期5月模拟考试数学试题
浙江省宁波市镇海中学2018届高三下学期5月模拟考试数学试题2020年浙江省名校高考仿真训练卷(三)浙江省宁波市镇海中学2020届高三下学期5月模拟数学试题(已下线)【新东方】杭州新东方高中数学试卷326
名校
4 . 已知抛物线
与直线
相切于点
,点
与
关于
轴对称.
(1)求抛物线
的方程及点
的坐标;
(2)设
是
轴上两个不同的动点,且满足
,直线
、
与抛物线
的另一个交点分别为
,试判断直线
与直线
的位置关系,并说明理由.如果相交,求出的交点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4690597bc0883f8932494c135a11433.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/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)设
![](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/8c57f00d1b1008afb2e4c69fc1d481bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2020-06-08更新
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2卷引用:2020届广东省茂名市高三第二次综合测试数学(文)试题
解题方法
5 . 已知抛物线
,直线
(
)与
交于
两点,
为
的中点,
为坐标原点.
(1)求直线
斜率的最大值;
(2)若点
在直线
上,且
为等边三角形,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c273a185a3b6cb29c26455566408ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d5dfcb94ab4e9ff787db9edfcfcb1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2020-06-05更新
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3卷引用:福建省福州市2020届高三毕业班第三次质量检查数学(文科)试题
6 . 如图,已知椭圆
的右焦点F为抛物线
的焦点,点M为
和
在第一象限的交点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/46a11566-e3d5-4afe-a33b-09bb148135a3.png?resizew=181)
(Ⅰ)求抛物线
的标准方程;
(Ⅱ)若
,过焦点F的直线l与
相交于A,B两点,已知
,求
取得最大值时直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946f59819f7147bf0e48fba6067b8e8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/4f7af88fa4d520e50e7904f04cb30bde.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/46a11566-e3d5-4afe-a33b-09bb148135a3.png?resizew=181)
(Ⅰ)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1009b50227b581dfd0e73ec0adafead7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9a3ea5e76e165faeabfdbc9717c287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
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名校
解题方法
7 . 已知抛物线
,过点
的直线
与
交于不同的两点
,且满足
,以
为中点的线段的两端点分别为
,其中
在
轴上,
在
上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_______ ,
的最小值为____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a112216665de5f2730f20725fd1c97a0.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/1325c6fe42a9e5c04520d8a9bb6821b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d335e66dec30244e3ee1c0d193335e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d341082cc54b1cb7a790af9ec4a365d.png)
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名校
8 . 已知抛物线
:
的准线经过点
,过
的焦点
作两条互相垂直的直线
,
,直线
与
交于
,
两点,直线
与
交于
,
两点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bdcfc71b422a73d7110b17e57c0e161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.![]() | B.![]() |
C.四边形![]() | D.若直线![]() ![]() |
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2020-05-31更新
|
808次组卷
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6卷引用:2020届海南省天一大联考高三年级第四次模拟数学试题
2020届海南省天一大联考高三年级第四次模拟数学试题江苏省南京市江宁区东山外国语学校2020-2021学年高二(10月份)月考数学试题(已下线)专题9.6 直线与圆锥曲线(精练)-2021年新高考数学一轮复习学与练湖南省株洲市第一中学2021届高三第三次模拟检测数学试题(已下线)“8+4+4”小题强化训练(51)圆锥曲线的综合问题(2)最值、范围问题-2022届高考数学一轮复习(江苏等新高考地区专用)江苏省扬中市第二高级中学2022届高三上学期期末模拟数学试题
9 . 已知点A(0,2),B为抛物线x2=2y﹣2上任意一点,且B为AC的中点,设动点C的轨迹为曲线E.
(1)求曲线E的方程;
(2)是否存在斜率为1的直线l交曲线E于M、N两点,使得△MAN为以MN为底边的等腰三角形?若存在,请求出l的方程;若不存在,请说明理由.
(1)求曲线E的方程;
(2)是否存在斜率为1的直线l交曲线E于M、N两点,使得△MAN为以MN为底边的等腰三角形?若存在,请求出l的方程;若不存在,请说明理由.
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解题方法
10 . 已知椭圆
的焦距为
,且过点
.
(1)求椭圆
的标准方程;
(2)若直线
与抛物线
相交于
两点,与椭圆
相交于
两点,
(
为坐标原点),
为抛物线的焦点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdd9c80a5e655599251b63e6e67a9e4.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60979839a14fad94d8f34566c698036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33181b27b10690b4913595f8c1f46e.png)
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