1 . 已知椭圆
的左、右焦点分别为
,过点
作直线
(与
轴不重合)交
于
两点,且当
为
的上顶点时,
的周长为8,面积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb5577e464a02b38365a7d963642ad6.png)
(1)求
的方程;
(2)若
是
的右顶点,设直线
的斜率分别为
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322a98c752d29b5721f17cb269564b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.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/656690e5d6fe1b44a4983086229f34ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb5577e464a02b38365a7d963642ad6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9913c4712821819af99d54b3dcfd19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667cb59b1d1cb18b48d881b154013650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0f3d01ffbe8e92705998320ddf2f44.png)
您最近一年使用:0次
2023-01-16更新
|
1933次组卷
|
7卷引用:河南省新乡市第二中学2024届高三上学期1月测试数学试题
解题方法
2 . 已知点P在椭圆C:
上.
(1)P与椭圆的顶点不重合,过P作圆
的两条切线,切点分别为E,F,直线EF与x轴、y轴分别交于点M,N.求证:
为定值;
(2)若
,过P的两条直线交C于A,B两点,两直线PA,PB的斜率之和为0,求直线AB的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddab7b8aa22e1ba4c59da7dc04ac9e2.png)
(1)P与椭圆的顶点不重合,过P作圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de7abc1c27897e27c4e3086f2bb6d8f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26454b354884f8b9d63910d5dc72e1cc.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
的左、右焦点分别为
,
,
为
上一点,且当
轴时,
.
(1)求
的方程;
(2)设
在点
处的切线交
轴于点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f3e6d607f4023f52652013eaf5a980.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa9a6be97b5f275d55697fd3cd0a442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc63c0a188f19cff0517e87b33c420a1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/11f5d82b6143092d57f11f31bb006913.png)
您最近一年使用:0次
2022-12-27更新
|
835次组卷
|
5卷引用:河南省中原名校联盟2023届高三上学期12月教学质量检测数学文科试题
河南省中原名校联盟2023届高三上学期12月教学质量检测数学文科试题内蒙古呼和浩特第二中学2022-2023学年高三上学期12月月考数学文科试题(已下线)专题13 圆锥曲线压轴解答题常考套路归类(精讲精练)-1(已下线)考点15 直线与圆锥曲线相切问题 2024届高考数学考点总动员(已下线)重难点突破06 弦长问题及长度和、差、商、积问题(七大题型)-1
名校
解题方法
4 . 已知椭圆
上有点
,左、右焦点分别为
.
(1)求椭圆的标准方程;
(2)若点Q为椭圆的上顶点,椭圆上有异于Q的两点
满足
,求证:直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc2210a7e09298897f6585ad08a70d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
(1)求椭圆的标准方程;
(2)若点Q为椭圆的上顶点,椭圆上有异于Q的两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0615bfe416db14d15783f764613ae84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2022-12-06更新
|
778次组卷
|
8卷引用:河南省青桐鸣2023届高二上学期11月联考数学试题
名校
解题方法
5 . 在平面直角坐标系
中,椭圆
与双曲线
有公共顶点
,且
的短轴长为2,
的一条渐近线为
.
(1)求
,
的方程:
(2)设
是椭圆
上任意一点,判断直线
与椭圆
的公共点个数并证明;
(3)过双曲线
上任意一点
作椭圆
的两条切线,切点为
、
,求证:直线
与双曲线
的两条渐近线围成的三角形面积为定值,并求出该定值.
![](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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.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/e3f52cb58b6bc5d71030463ba7e28134.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b7b5a74a10686910113e756e5add888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(3)过双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53147c1ea72065497f424f84d92da2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
您最近一年使用:0次
2022-11-04更新
|
581次组卷
|
3卷引用:河南省郑州市新密市第一高级中学2022-2023学年高二上学期第三次月考数学试题
名校
解题方法
6 . 设
分别是椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c91e805ed85d924f9390dd934f606ba.png)
的左、右焦点,
是
上一点,
与
轴垂直.直线
与
的另一个交点为
,且直线
的斜率为
.
(1)求椭圆
的离心率;
(2)设
是椭圆
的上顶点,过
任作两条互相垂直的直线分别交椭圆
于
两点,证明直线
过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c91e805ed85d924f9390dd934f606ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334bdc080ea1ee4456889f56416a318.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/183b6a0cef4256c9696a5bca31053da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821309f088a175c00dc0f4828334503d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bdfbae913ff7ff8caaefcaacf8c20ca.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5725e3e4eb05b32563b4ee1d473756c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2022-10-06更新
|
1629次组卷
|
5卷引用:河南省顶级名校2022-2023学年高三上学期第一次月考试卷数学(文)试题
河南省顶级名校2022-2023学年高三上学期第一次月考试卷数学(文)试题(已下线)专题31 圆锥曲线的垂直弦问题-1天津外国语大学附属外国语学校2023届高三上学期10月月考数学试题(已下线)重难点突破08 圆锥曲线的垂直弦问题 (八大题型)广西百色市平果市铝城中学2024届高三下学期4月月考数学试卷
名校
7 . 已知椭圆
的左、右焦点分别为
,
,左顶点为
,且过点
.
(1)求C的方程;
(2)过原点O且与x轴不重合的直线交C于E,F两点,直线AE,AF分别与y轴交于点M,N,求证:M,
,N,
四点共圆.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](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/7d508fb72d941d6fff0496ed7d83e4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558494a4594f69b0b679d8d588006efa.png)
(1)求C的方程;
(2)过原点O且与x轴不重合的直线交C于E,F两点,直线AE,AF分别与y轴交于点M,N,求证:M,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
您最近一年使用:0次
2022-06-09更新
|
786次组卷
|
6卷引用:河南省许平汝联盟2022届高三下学期核心模拟卷(六)理科数学试题
河南省许平汝联盟2022届高三下学期核心模拟卷(六)理科数学试题河南省许平汝联盟2022届高三下学期核心模拟卷(六)文科数学试题(已下线)考向36 直线与圆锥曲线最全归纳(十六大经典题型)-3(已下线)专题38 圆锥曲线中的圆问题-2(已下线)第五篇 向量与几何 专题10 圆锥曲线中的四点共圆问题 微点3 圆锥曲线中的四点共圆问题综合训练(已下线)重难点突破15 圆锥曲线中的圆问题(四大题型)
名校
解题方法
8 . 已知椭圆
的上下顶点分别为
,
,离心率为
.
![](https://img.xkw.com/dksih/QBM/2022/5/12/2977926716080128/2978535997243392/STEM/52c06ee4e36546d08d79c3e7740dc6a4.png?resizew=200)
(1)求椭圆的标准方程;
(2)过点
且斜率为
的直线
与椭圆交于M,N两点,求证:直线
与直线
的交点T的纵坐标为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37434c0bc2a8f4b8e5f16f16dc3d9b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d503ab387c5cac181bb983989ecd499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://img.xkw.com/dksih/QBM/2022/5/12/2977926716080128/2978535997243392/STEM/52c06ee4e36546d08d79c3e7740dc6a4.png?resizew=200)
(1)求椭圆的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e884ca9429486026caa5e2310b0e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/201d7685f19582f5d54f9205e8598d5a.png)
您最近一年使用:0次
2022-05-13更新
|
372次组卷
|
2卷引用:河南省多校联盟2022届高考终极押题(A卷)数学(文)试题
名校
解题方法
9 . 已知椭圆
的右顶点为
,离心率为
.过点
与x轴不重合的直线l交椭圆E于不同的两点B,C,直线
,
分别交直线
于点M,N.
(1)求椭圆E的方程;
(2)设O为原点.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54695f96e6f365b0cc79b3ceaf5d26cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cc033406da2cdd342308972c6701f1.png)
(1)求椭圆E的方程;
(2)设O为原点.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5897b35e64d5c814ac47b917d45e88.png)
您最近一年使用:0次
2022-05-05更新
|
2651次组卷
|
8卷引用:河南省南阳市第二中学校2022-2023学年高二上学期12月月考数学试题
解题方法
10 . 已知椭圆
的上一点
处的切线方程为
,椭圆C上的点与其右焦点F的最短距离为
,离心率为
.
(1)求椭圆C的标准方程;
(2)若点P为直线
上任一点,过P作椭圆的两条切线PA,PB,切点为A,B,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9656735f55e5de465e5667ba578d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34e01955f8c8fe2f0041b35d8d602a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的标准方程;
(2)若点P为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a56375c3423cc022ac9d6d04e3a61bb9.png)
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