名校
解题方法
1 . 已知
分别为椭圆
的左、右焦点,点
是椭圆C上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/628716fb-0ce8-4fa7-a642-f4901e6c0fef.png?resizew=150)
(1)求椭圆C的方程;
(2)设
是椭圆C上且处于第一象限的动点,直线
与椭圆C分别相交于
两点,直线
,相交于点N,试求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad492d5033448d419df9c9b75a71894e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/628716fb-0ce8-4fa7-a642-f4901e6c0fef.png?resizew=150)
(1)求椭圆C的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2752e086b85f9fbb95010bf771072af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcac2911dcf6aa3e4f41b923f3ca409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfc9cfb1d1c8578ac3566490132bc7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089562f134fed03907d424f5c84de6a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/799605cd059d0f483f85aa8b3c501d84.png)
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2023-05-12更新
|
1142次组卷
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5卷引用:湖北省圆创联考2023届高三下学期五月联合测评数学试题
湖北省圆创联考2023届高三下学期五月联合测评数学试题宁夏石嘴山市第三中学2023届高三第四次模拟数学(理)试题湖北省武汉市第六中学2023-2024学年高二上学期第4次月考暨期末联考模拟数学试题(已下线)专题06 圆锥曲线大题(已下线)专题08 圆锥曲线 第三讲 圆锥曲线中的最值与范围问题(分层练)
名校
2 . 已知抛物线
的焦点为F,准线与x轴的交点为C,过点C的直线l与抛物线E交于A,B两点(点A和点C在点B的两侧),则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4fb72e39d79b7a0cd892fa5fa34bb7.png)
A.若BF为![]() ![]() |
B.若BF为![]() ![]() |
C.存在直线l,使得![]() |
D.对于任意直线l,都有![]() |
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名校
解题方法
3 . 已知双曲线
的离心率为
,点
,
分别是其左右焦点,过点
的直线交双曲线的右支于P,A两点,点P在第一象限.当直线PA的斜率不存在时,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/5c9a5df9-5fd2-4303-8292-06e9c92a1976.png?resizew=167)
(1)求双曲线的标准方程.
(2)线段
交圆
于点B,记
,
,
的面积分别为S1,S2,S,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8664e94c5793590f8d478e20908317c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6dc791ae552024ea0df7905bf190f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace7c9e3da8613175ca07c54c116127a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4c35c4f2ebf977b631c3eb9018badf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/5c9a5df9-5fd2-4303-8292-06e9c92a1976.png?resizew=167)
(1)求双曲线的标准方程.
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da030ffb37c96fe8255992180dc8e1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46acf22e5dfb2e5b58f155587c9edd73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a830868f7b9c9d67239066a210857447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4ba9b58de88d84cf9eeb74c334846ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51da7a6689fcd857bdafe8b9aef58231.png)
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解题方法
4 . 已知双曲线
,
,过点
可做2条直线与左支只有一个交点,与右支不相交,同时可以做2条直线与右支只有一个交点,与左支不相交,则双曲线离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab99682bd5bec543e58c8d8acbc62b6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe0c952b97016a6816cfca66e024ef4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
5 .
为椭圆
上任意一点,且点
到直线
和
的距离之和与点
的位置无关,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0296bd9900adcc311f59ad44e940b86f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3083b4990d96d218ee17f1c06486519b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b680ce96f55234b2dfc73980fab811f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-05-04更新
|
556次组卷
|
2卷引用:湖北省荆门市龙泉中学、荆州中学·、宜昌一中三校2023届高三下学期5月联考数学试题
6 . 已知双曲线
的左、右焦点分别为
,过点
斜率为
的直线
与双曲线
的左、右两支分别交于
两点,下列命题正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3390bb20d0954f0f320771a1c19d49ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7638c88f01d609d79947033ed4ff36a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f8edea2e5d4e08cf6210d0e9f3fdbb.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f5f4ad0caac5a0fecb64f3908d2290.png)
A.![]() |
B.当点![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.![]() |
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2023-05-04更新
|
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|
3卷引用:湖北省荆门市龙泉中学、荆州中学·、宜昌一中三校2023届高三下学期5月联考数学试题
名校
解题方法
7 . 已知抛物线
的焦点为
,过点
的直线与
交于
,两点,若
,则
两点横坐标之和的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3bebda75b98dc0895282e89dee8008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
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2023-05-04更新
|
470次组卷
|
3卷引用:湖北省新高考I卷2023届高三四模数学试题
名校
解题方法
8 . 已知
为抛物线
的焦点,直线
与
交于
,
,
与
的另一个交点为
,
与
的另一个交点为
.若
与
的面积之比为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7b16d65f1b2b8bea8cf4a83fde925.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/6aa2b5e09f8ec785c59900a529390a02.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/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320896d1b4b9217d9ba527604ac35d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
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2023-05-02更新
|
1070次组卷
|
3卷引用:湖北省星云联盟2023届高三下学期统一模拟考试Ⅱ数学试题
9 . 已知椭圆
的左、右焦点分别为
,
,过
的直线
交
于A,
两点,且
在线段
上.
(1)求直线
,
的斜率之和;
(2)设
与
交于点
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff1455a4045eb93f482c0751840aea7.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/1400bea62e9e0bf6c924b796045b3948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/817a419430d9951cbdb89b657b21bcf0.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae28f18db533bf6764b4451b60dfeb54.png)
您最近一年使用:0次
2023-05-02更新
|
465次组卷
|
2卷引用:湖北省星云联盟2023届高三下学期统一模拟考试Ⅱ数学试题
解题方法
10 . 已知
是椭圆C:
的右顶点,过点
且斜率为
的直线l与椭圆C相交于A,B两点(A点在x轴的上方),直线PA,PB分别与直线
相交于M,N两点.当A为椭圆C的上顶点时,
.
(1)求椭圆C的方程;
(2)若
,且
,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d776a89f4fd29dccffe1040069d59ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9700ce79eeb1fa4503dbf3c6cc36e79b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02f266bd253738e315e84231235f0d2.png)
(1)求椭圆C的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a556429d7b7ef4913a938781c9f2dddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10eb9b5e8f2143b8324827092021d8b6.png)
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2023-04-28更新
|
567次组卷
|
3卷引用:湖北省十堰市2023届高三下学期四月调研考试数学试题