1 . 在平面直角坐标系
中,过方程
所确定的曲线C上点
的直线与曲线C相切,则此切线的方程
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/04248dd4-2a9e-46bf-8333-9a00aa380547.png?resizew=160)
(1)若
,直线
过
点被曲线C截得的弦长为2,求直线
的方程;
(2)若
,
,点A是曲线C上的任意一点,曲线过点A的切线交直线
于M,交直线
于N,证明:
;
(3)若
,
,过坐标原点斜率
的直线
交C于P、Q两点,且点P位于第一象限,点P在x轴上的投影为E,延长QE交C于点R,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ed42bf714fe054b653240f40c3d017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22962a2ad892cb6b14ab039a06e8cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbbf65a3b546a0c297d23c7a1c4705.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/04248dd4-2a9e-46bf-8333-9a00aa380547.png?resizew=160)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0d612eb54997b8e18e64cf22d67901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3f986a4f053c576c8a58c7debc8829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87d9da32b85bc11e8f486ea3ec89216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102da243d031c465c687139fc7282a47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b7e4c300a569ab4a050359fb3ccee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18352d9b80514fa2915b54701c09b078.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4479d54b1eced7c425e2deaefb18c233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935b4035585dfe624ebdd0c758c6ea89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fd8ac31144079244b1070c84445db2.png)
您最近一年使用:0次
2021-06-03更新
|
1490次组卷
|
6卷引用:上海市格致中学2021届高三三模数学试题
上海市格致中学2021届高三三模数学试题(已下线)考向26 圆与方程-备战2022年高考数学一轮复习考点微专题(上海专用)上海市华东师范大学第三附属中学2021-2022学年高二下学期3月月考数学试题(已下线)高二下学期第一次月考卷(测试范围:沪教版2020选修一前两章)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)山东省青岛市青岛第一中学2022-2023学年高二上学期期中数学试题黑龙江省鹤岗市第一中学2022-2023学年高二上学期期末数学试题
解题方法
2 . 已知A、B为椭圆
=1(a>b>0)和双曲线
=1的公共顶点,P,Q分别为双曲线和椭圆上不同于A,B的动点,且满足
,设直线AP、BP、AQ、BQ的斜率分别为k1、k2、k3、k4.
(1)求证:点P、Q、O三点共线;
(2)当a=2,b=
时,若点P、Q都在第一象限,且直线PQ的斜率为
,求△BPQ的面积S;
(3)若F1、F2分别为椭圆和双曲线的右焦点,且QF1
PF2,求k12+k22+k32+k42的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/199f454cb22c34dfa82798ebd6c9054c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2ea8fcb101c2ecba2b2c862eb66b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e62df1447b2bb71c67def824adfc9fb.png)
(1)求证:点P、Q、O三点共线;
(2)当a=2,b=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(3)若F1、F2分别为椭圆和双曲线的右焦点,且QF1
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
您最近一年使用:0次
3 . 已知常数
,抛物线
的焦点为F.
(1)若直线
被
截得的弦长为4,求
的值:
(2)设E为点F关于原点O的对称点,P为
上的动点,求
的取值范围;
(3)设
,直线
、
均过点F,且
,
与
相交于A、B两点,
与
相交于C、D两点,若
,求四边形ACBD的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49cd0e83c4f9a3239084f138107ea1d.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)设E为点F关于原点O的对称点,P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02084e69bca97d818f7e84bf1955508.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acff98078cdd32804d8f1c4efbe2ddd.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/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
您最近一年使用:0次
名校
4 . 如图,
平面
为
中点,
,
,点
为平面
内动点,且
到直线
的距离为
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1183ee88499cc74960af0e3124a6eac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f2ab6093c8e91a2c89b47687e0b878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd8f34f2048a0eece64a4bbbc11da7c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ed13caca17a5480dda83a6a5498976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://img.xkw.com/dksih/QBM/2021/5/25/2728858708451328/2730904957575168/STEM/f119a082-2e7b-4b41-becd-70a8af611197.png)
您最近一年使用:0次
2021-05-28更新
|
1460次组卷
|
6卷引用:上海市青浦高级中学2021届高三三模数学试题
上海市青浦高级中学2021届高三三模数学试题上海市青浦区2021届高三三模数学试题(已下线)考点44 曲线与方程-备战2022年高考数学(理)一轮复习考点帮(已下线)课时34 曲线和方程-2022年高考数学一轮复习小题多维练(上海专用)(已下线)第12练 空间直线、平面的垂直-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)(已下线)专题26 求动点轨迹方程 微点2 定义法求动点的轨迹方程
5 . 已知直线
与椭圆
交于
、
两点(如图所示),且
在直线
的上方.
![](https://img.xkw.com/dksih/QBM/2021/5/18/2723889934524416/2728001939791872/STEM/d597540c3de24d17bbd9f2a279e873cc.png?resizew=185)
(1)求常数
的取值范围;
(2)若直线
、
的斜率分别为
、
,求
的值;
(3)若
的面积最大,求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10462edd0dbd28fc3908fe32726211a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f60eef6cf563ceb168e36025d023db5.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/5dba969413d0c05cfea8cae5b37a7c21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/2021/5/18/2723889934524416/2728001939791872/STEM/d597540c3de24d17bbd9f2a279e873cc.png?resizew=185)
(1)求常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69e3f7ddd51215d00661c09cd900d60.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2cc5f8cec8c498aa12c99c04e1c97d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
您最近一年使用:0次
6 . 已知椭圆
=1上有两点P(﹣2,1)及Q(2,﹣1),直线l:y=kx+b与椭圆交于A、B两点,与线段PQ交于点C(异于P、Q).
(1)当k=1且
时,求直线l的方程;
(2)当k=2时,求四边形PAQB面积的取值范围;
(3)记直线PA、PB、QA、QB的斜率依次为k1、k2、k3、k4.当b≠0且线段AB的中点M在直线y=﹣x上时,计算k1⋅k2的值,并证明:k12+k22>2k3k4.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c03c6b8d7418edf20f474389971352.png)
(1)当k=1且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72313ccba4d3c4329372e40f0d076bff.png)
(2)当k=2时,求四边形PAQB面积的取值范围;
(3)记直线PA、PB、QA、QB的斜率依次为k1、k2、k3、k4.当b≠0且线段AB的中点M在直线y=﹣x上时,计算k1⋅k2的值,并证明:k12+k22>2k3k4.
您最近一年使用:0次
7 . 已知抛物线
的焦点为
,直线
交抛物线于不同的
两点.
(1)若直线
的方程为
,求线段
的长;
(2)若直线
经过点
,点
关于
轴的对称点为
,求证:
三点共线;
(3)若直线
经过点
,抛物线上是否存在定点
,使得以线段
为直径的圆恒过点
?若存在,求出点
的坐标,若不存在,请说明理由.
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cc0f9aa168e43cc5759f017d69b498.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/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc974093c70ddb5acdbae59378bed42.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd99db7870f44cc39d36e7a7b9beb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
2021-05-11更新
|
1031次组卷
|
5卷引用:上海市松江区2021届高三二模数学试题
上海市松江区2021届高三二模数学试题(已下线)考向25 直线与方程-备战2022年高考数学一轮复习考点微专题(上海专用)上海市控江中学2022届高三下学期3月月考数学试题上海市格致中学2023届高三下学期3月阶段性测试数学试题上海市浦东新区建平中学2024届高三下学期2月考试数学试卷
8 . 曲线
与曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fb8742324ca04e5c5f9a2e92e240e9.png)
在第一象限的交点为
.曲线
是
(
)和
(
)组成的封闭图形.曲线
与
轴的左交点为
、右交点为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/c62720f8-b060-4076-8cd6-90cba74a716d.png?resizew=241)
(1)设曲线
与曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fb8742324ca04e5c5f9a2e92e240e9.png)
具有相同的一个焦点
,求线段
的方程;
(2)在(1)的条件下,曲线
上存在多少个点
,使得
,请说明理由.
(3)设过原点
的直线
与以![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928d1325e0f48501a6e1680b814eb0f7.png)
为圆心的圆相切,其中圆的半径小于1,切点为
.直线
与曲线
在第一象限的两个交点为
.
.当
对任意直线
恒成立,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7261298d9edd1d9a75eb9aeb1e686ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fb8742324ca04e5c5f9a2e92e240e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9cd3690e7aa3debb1ed054a9f622da.png)
![](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/a7261298d9edd1d9a75eb9aeb1e686ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a254a2539e3fddd2ed1e11fe17ef48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fb8742324ca04e5c5f9a2e92e240e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dee41282d614039c13dcdc6d71f65e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/c62720f8-b060-4076-8cd6-90cba74a716d.png?resizew=241)
(1)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7261298d9edd1d9a75eb9aeb1e686ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fb8742324ca04e5c5f9a2e92e240e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9cd3690e7aa3debb1ed054a9f622da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
(2)在(1)的条件下,曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc916165b2d9891d60c235da991182d6.png)
(3)设过原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928d1325e0f48501a6e1680b814eb0f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cea72e0c37257bcfd85a59ef8dd0f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc37ebff7b12c6b1a6aedb68206a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2021-05-11更新
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4卷引用:上海市奉贤区2021届高三二模数学试题
上海市奉贤区2021届高三二模数学试题(已下线)上海市华东师范大学第二附属中学2021-2022学年高二上学期期末数学试题上海市南洋模范中学2021-2022学年高二下学期期中数学试题(已下线)期中模拟预测卷02(测试范围:选修一全部内容)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)
9 . 如图,已知椭圆
的左右顶点分别为A、B,P是椭圆
上异于A、B的一点,直线
,直线
、
分别交直线l于两点C、D,线段
的中点为E.
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712323799859200/2715189758140416/STEM/1ada3aaccf274444ba0f2583744b085c.png?resizew=224)
(1)设直线
、
的斜率分别为
、
,求
的值;
(2)设
、
的面积分别为
、
,如果
,求直线
的方程;
(3)在x轴上是否存在定点
,使得当直线
、
的斜率
、
存在时,
为定值?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7b1b8a84ae7a1b2243b78cc932860d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712323799859200/2715189758140416/STEM/1ada3aaccf274444ba0f2583744b085c.png?resizew=224)
(1)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f145b2ee281664660dea890bb24e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0d3de89a3c9fb5f775b2dab1842ef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e29f704ed1e1faa4ad7cd45c34cfb7a6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acefc1a2f02c6fcf971b8038323ea03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
(3)在x轴上是否存在定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432aae51854129e8c10f7c34c0c3a79f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ffc7d1af9053b027cf9e726f5367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5d8e33929752b1cb4dd36ee9b98b45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94803c9730f71fae718a49d175764626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0a5f6ebeb8236a8076063bdd38c7b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb2a5a3cf8b042db94b784a6b1e2556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb2a5a3cf8b042db94b784a6b1e2556.png)
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2021-05-06更新
|
252次组卷
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2卷引用:上海市闵行区2021届高三二模数学试题
解题方法
10 . 已知
、
分别是椭圆
的左右顶点,
为坐标原点,
,点
在椭圆
上.过点
的直线
交椭圆
于
、
两个不同的点.
(1)求椭圆
的标准方程;
(2)若点
落在以线段
为直径的圆的外部,求直线
的倾斜角
的取值范围;
(3)当直线
的倾斜角
为锐角时,设直线
、
分别交
轴于点
、
,记
,
,求
的取值范围.
![](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/91665878e65daa8b9267819d5310fd0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0907a673d52825cd7df84b400972d4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500272f9f312e2bc0f32e4afc058db41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bab45799f9f8d0374f529e8b30a0b27.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(3)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/2cfc9b28711b4e9c4b554202fe46fe6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bd0693e932eb65b222f3453e04280b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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