名校
1 . 如图,在平面直角坐标系
中,过原点的直线
交抛物线
于点P(异于原点O),抛物线C上点P处的切线交y轴于点M,设线段
的中点为N,连结线段
交C于点T.
![](https://img.xkw.com/dksih/QBM/2021/2/23/2663830670114816/2664817993244672/STEM/d6204e11f32b4f369194d7b978e74a20.png?resizew=163)
(1)求
的值;
(2)过点P作圆
的切线交C于另一点Q,设直线
的斜率为
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3427218fa2f56b26e3a8917d0e4cb22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/2021/2/23/2663830670114816/2664817993244672/STEM/d6204e11f32b4f369194d7b978e74a20.png?resizew=163)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c80a39ffeef4d2613f5ff92cae3eb88.png)
(2)过点P作圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff34ba0116c034d0bcfcfcc6bb965cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3fbcd952073f38340769b8fbca5b23.png)
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2021-02-24更新
|
780次组卷
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3卷引用:江苏省苏州市2021届高三下学期期初数学试题
江苏省苏州市2021届高三下学期期初数学试题(已下线)专题1.11 圆锥曲线-定点、定值、定直线问题-2021年高考数学解答题挑战满分专项训练(新高考地区专用)江苏省南京市第二十九中学2020-2021学年高二下学期3月月考数学试题
解题方法
2 . 已知点P为直线
上一动点,过点P作抛物线
的两条切线,切点分别为A,B,点A,B在直线l上的射影分别为D,C,若四边形
的面积为32,则点P的横坐标为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42502a5730e1930d77d7100d1e34707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ad7c068b9b7c0fd764cf7746407079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
解题方法
3 . 在平面直角坐标系xoy中,凸四边形ABCD的4个顶点均在抛物线E:y2=2x上,则( )
A.四边形ABCD不可能为平行四边形 |
B.存在四边形ABCD,满足∠A=∠C |
C.若AB过抛物线E的焦点F,则直线OA,OB斜率之积恒为─2 |
D.若![]() ![]() |
您最近一年使用:0次
2021-04-19更新
|
644次组卷
|
5卷引用:江苏省苏州市八校联盟2021届高三下学期第三次适应性检测数学试题
江苏省苏州市八校联盟2021届高三下学期第三次适应性检测数学试题(已下线)考点40 抛物线-备战2022年高考数学(文)一轮复习考点帮(已下线)第3章 圆锥曲线与方程(章末测试基础卷)-2021-2022学年高二数学同步单元测试定心卷(苏教版2019选择性必修第一册)(已下线)第3.6讲 抛物线的简单几何性质-2021-2022学年高二数学链接教材精准变式练(人教A版2019选择性必修第一册)(已下线)第14题 抛物线的方程及几何性质-2021年高考数学真题逐题揭秘与以例及类(新高考全国Ⅰ卷)
名校
4 . (多选题)阿基米德(公元前287年—公元前212年是古希腊伟大的物理学家、数学家、天文学家,他研究抛物线的求积法,得出一个著名的阿基米德定理,并享有“数学之神”的称号.抛物线的弦与过弦的端点的两切线所围成的三角形被称为“阿基米德三角形”,如图所示,在抛物线
上有两个不同的点A,B,坐标分别为
,
,以A,B为切点的切线PA,PB相交于点P,给出以下结论,其中正确的为( )
![](https://img.xkw.com/dksih/QBM/2020/12/9/2610485077835776/2612116727382016/STEM/a19e12a8367b49038b427567d144c03d.png?resizew=227)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8516f71467b419293fa27df70bdaed74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://img.xkw.com/dksih/QBM/2020/12/9/2610485077835776/2612116727382016/STEM/a19e12a8367b49038b427567d144c03d.png?resizew=227)
A.点P的坐标是![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() |
您最近一年使用:0次
2020-12-11更新
|
921次组卷
|
3卷引用:江苏省苏州市第三中学2020-2021学年高二下学期3月月考数学试题
名校
解题方法
5 . 设
、
分别是椭圆
的左、右焦点,过
直线l与椭圆E相交于A,B两点.
(1)当t为常数时.若
成等差数列,且公差不为0,求直线l的方程:
(2)当
时,延长
与E相交于另一个点C,试判断直线
与椭圆
位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9480823672eaa32df41fbe0a878c36cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
(1)当t为常数时.若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2456e705edaefb8e04abf14ddd0f4a3f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/245985a19e6b0744248b026c29ba4b2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a80a5faf097bfc8bafbef34138be0b.png)
您最近一年使用:0次
6 . 如图,在平面直角坐标系
中,椭圆
的离心率为
,过原点
的直线交该椭圆于
,
两点(点
在
轴上方),点
.当直线
垂直于
轴时,
.
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945177600/STEM/cc8835e1-3136-4086-8513-b8397f0ee821.png)
(1)求
,
的值;
(2)设直线
与椭圆的另一交点为
,直线
与椭圆的另一交点为
.
①若
,求
的面积;
②是否存在
轴上的一定点
,使得直线
恒过点
?若存在,求出
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622a7aca2bc5b3c995290f72d465da76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c2deecbdc65669b4f8c2cc42402caf.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945177600/STEM/cc8835e1-3136-4086-8513-b8397f0ee821.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cafd68b617f1a49be04261423de9757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
②是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
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解题方法
7 . 著名数学家庞加莱说“我感受到了数学的美、数字和形状的协调,以及几何的优雅”.为了让学生体会数学之美,某校数学组开设了特色校本课程,老师利用两类圆锥曲线构造了一个近似“
”形状的曲线,它由抛物线
的一部分和椭圆
的一部分构成(如图1).已知在平面直角坐标系
中,
:
和
:
交于
,
两点,
是公共焦点,
,
(如图2).
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/19ec1f55-0d09-4fdc-97d8-f0c0d781aede.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/e97c2ef8-807f-47b5-9008-4f10ee66d5ab.png)
(1)求
和
的方程;
(2)过点
作直线
与“
”形状曲线依次交于
,
,
,
四点,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.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/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb223b8777ab973970491bf0dcc6806.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed0c2d5f6e9add5b72c4b82a9a29c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f94fb620637681af65d30e8037c998.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/19ec1f55-0d09-4fdc-97d8-f0c0d781aede.png)
![](https://img.xkw.com/dksih/QBM/2021/1/19/2639515719237632/2641606945112064/STEM/e97c2ef8-807f-47b5-9008-4f10ee66d5ab.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf1b30a840a82eb933efd395a359737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2021-01-22更新
|
544次组卷
|
4卷引用:江苏省苏州市2020-2021学年高二上学期1月学业质量阳光指标调研数学试题
江苏省苏州市2020-2021学年高二上学期1月学业质量阳光指标调研数学试题江苏省南通市海安市立发中学2022-2023学年高二上学期期末数学试题(已下线)模块三 专题12 抛物线 A基础卷(已下线)模块三 专题15 抛物线 A基础卷
8 . 在平面直角坐标系
中,已知双曲线
的左、右顶点分别为
、
,其图象经过点
,渐近线方程为
.
(1)求双曲线
的方程;
(2)设点
、
是双曲线
上位于第一象限的任意两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.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/fd0471cd3dccabaef113cd5761544d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3051f43ac48c0a730a791b8a93ad37.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f15f9a683c86700fbadc0e5299cea93.png)
您最近一年使用:0次
名校
解题方法
9 . 椭圆
的离心率是
,斜率为1的直线过M(b,0)且与椭圆交于A,B两点,O为坐标原点,若
,则椭圆的标准方程是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/491c4279574c224631ae2f63adb96560.png)
您最近一年使用:0次
2021-06-17更新
|
505次组卷
|
6卷引用:江苏省苏州中学2020-2021学年高二暑期自主学习质量评估数学试题
江苏省苏州中学2020-2021学年高二暑期自主学习质量评估数学试题安徽省宣城市郎溪中学20219届高三高考数学(理)仿真试题(一)(已下线)3.1 椭圆-2021-2022学年高二数学链接教材精准变式练(苏教版2019选择性必修第一册)(已下线)3.1椭圆(A 基础培优练)-2021-2022学年高二数学同步双培优检测(苏教版2019选择性必修第一册)(已下线)第02讲 椭圆的简单几何性质-【帮课堂】(已下线)考点11 椭圆-备战2022年高考数学学霸纠错(新高考专用)
名校
10 . 设椭圆
的离心率为
,上、下顶点分别为A,B,
.过点
,且斜率为k的直线l与x轴相交于点F,与椭圆相交于C,D两点.
(1)求椭圆的方程;
(2)若
,求k的值;
(3)是否存在实数k,使直线
平行于直线
?证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3182f32cc4f57ff13155ada0231d606f.png)
(1)求椭圆的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/922b3359a49e63b85b9a8cfe908467d1.png)
(3)是否存在实数k,使直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
2022-03-31更新
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290次组卷
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3卷引用:江苏省苏州市昆山市七校2021-2022学年高二上学期12月联考数学试题