1 . 已知椭圆
的左、右焦点分别为
和
,经过点
且斜率为k的直线l交椭圆
于B,C两点,其中点C在第二象限.如图所示,将
的上半部分(半椭圆)沿着长轴翻折使得点C翻折至点A且二面角
为直二面角.设三角形
和三角形
的周长分别为
和
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/18/ba44a91d-f312-406b-b629-1d8e0330619f.png?resizew=335)
(1)证明:
;
(2)若
,求异面直线
和
所成角的大小;
(3)若
,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f639240bf9ab7a9a68e779cd51ab2641.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5465c4f86cbc6cc2c9ba7adbc2060b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045a830b449a9b95a51688c63d80ba15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef419f0740dae5db5cc51675bc51afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1256c57833e0d2d6b58e7fa20576eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94cde8f1ae6799f3fe64ed059b485fc.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/18/ba44a91d-f312-406b-b629-1d8e0330619f.png?resizew=335)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800ce9c8dfb28051661e98015f4041c2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f247c2d094e3a2b5df9178d5f55fbf39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbad65b3d744b70da2480eee1cdb587.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a065ed0c5b57b6be8f3be52249c33f.png)
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解题方法
2 . 已知椭圆
:
(
)的离心率为
,它的上顶点为
,左、右焦点分别为
,
(常数
),直线
,
分别交椭圆
于点
,
.
为坐标原点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/4bf70cfc-5f0c-4e72-bdd9-360e1e913a72.png?resizew=243)
(1)求证:直线
平分线段
;
(2)如图,设椭圆
外一点
在直线
上,点
的横坐标为常数
(
),过
的动直线
与椭圆
交于两个不同点
、
,在线段
上取点
,满足
,试证明点
在直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86dbcf83cd5d3421b3eed7be7dab32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/4bf70cfc-5f0c-4e72-bdd9-360e1e913a72.png?resizew=243)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)如图,设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23116746fed8b245a5d69ab5600836e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ef3f1bbaa28cba883f73ad7f4f2d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a77265c768c72d5d3ac907fb722a5c.png)
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名校
3 . 已知椭圆方程为
,左右焦点分别为
,
,
是长轴的右端点.点C在椭圆上,C关于原点的对称点为B.过C作直线
垂直于x轴,与x轴相交于M.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/20/8d44a63e-c917-4688-ae21-afab539d9841.png?resizew=235)
(1)当C为椭圆的上顶点时,求三角形
的周长(直接写出结果);
(2)若C在第一象限,且直线BM与直线AC的斜率乘积为
,求
;
(3)在(2)的条件下,设PQ是椭圆上位于第四象限的两点(Q在P的右边),直线
与线段PQ相交于N,且满足
.判断四边形AQPB的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2af0127bac2803d37870edbcdac6214c.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/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/20/8d44a63e-c917-4688-ae21-afab539d9841.png?resizew=235)
(1)当C为椭圆的上顶点时,求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56c3015610a5676a79e836b82ba7b62e.png)
(2)若C在第一象限,且直线BM与直线AC的斜率乘积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb0b732912cec85d7818ba891cdf82ed.png)
(3)在(2)的条件下,设PQ是椭圆上位于第四象限的两点(Q在P的右边),直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0520c816f0fd88659228f80a2b4ad7.png)
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4 . 已知椭圆C:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
,
,
,
,
这四点中恰有三点在椭圆C上.
(2)点E是椭圆C上的一个动点,求
面积的最大值;
(3)过
的直线l交椭圆C于A、B两点,设直线l的斜率
,在x轴上是否存在一点
,使得以DA、DB为邻边的平行四边形为菱形?若存在,求实数m的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c21b59d92c33a3b451d6cc13878c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29949b6603f30e3cda2a1af6de90f3f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318f2f6154dc3463b88fe889a5403c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c41b2f7ca11db3aaea46c69286adbce.png)
(2)点E是椭圆C上的一个动点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c48e42ce4fd7e6da946bf2b7b22200db.png)
(3)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d72babd92b33b44fa45d0d559c03f617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349109e1d324c60a977c98bc30ec9973.png)
您最近一年使用:0次
2022-12-16更新
|
565次组卷
|
2卷引用:上海市宝山区2023届高三上学期一模数学试题
5 . 已知曲线
的方程为
,直线
:
与曲线
在第一象限交于点
.
(1)若曲线
是焦点在
轴上且离心率为
的椭圆,求
的值;
(2)若
,
时,直线
与曲线
相交于两点M,N,且
,求曲线
的方程;
(3)是否存在不全相等
,
,
满足
,且使得
成立.若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb35212fddffca72021a984cfb1eccea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff186a9842c2e005014f9a82b6bec57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46de5f5993e7dcd0e828081045e502af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb35212fddffca72021a984cfb1eccea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3822d5b5db72c2560aa385bf6500fc47.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b5dc876d7dcd3c971b36d26668b1e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffff36f925d527a0000d36420ca864e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192a35f0603f57bcc6ec1e75927ba916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)是否存在不全相等
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b5dc876d7dcd3c971b36d26668b1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7345f310975ddb40dca94b5135c35dad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061baa765d2939a416300de14c45b8ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/944f333c07f1ace36046b6069ce79b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c68c35a19691406a91a5dec7e92e670a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
您最近一年使用:0次
2022-12-16更新
|
572次组卷
|
3卷引用:上海市徐汇区2023届高三一模数学试题
名校
解题方法
6 . 在xoy坐标平面内,已知椭圆
的左、右焦点分别为
、
,直线
与
相交于A、B两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/5c575c67-f6cd-498c-a8b6-80a32626836a.png?resizew=189)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/1b3bfeac-39dd-441b-9ade-9f03b2f51281.png?resizew=187)
(1)记d为A到直线
的距离,当
变化时,求证:
为定值;
(2)当
时,求
的值;
(3)过B作BM⊥x轴,垂足为M,OM的中点为N,延长AN交
于另一点P,记直线PB的斜率为
,当
取何值时,
有最小值?并求出此最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dfefe29b9f7643bf7099ee21345afc.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/2cdaf3914f625c7535a8ddc019ff4cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/5c575c67-f6cd-498c-a8b6-80a32626836a.png?resizew=189)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/1b3bfeac-39dd-441b-9ade-9f03b2f51281.png?resizew=187)
(1)记d为A到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1531b008d36fbc27fb940a8efe239c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1f79c04df9051331559b1bbf20aa007.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30892784d3f0a6ef780c9fa42796df2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c600e7bc9ca4f34bd849c27efdf33b7.png)
(3)过B作BM⊥x轴,垂足为M,OM的中点为N,延长AN交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3fbcd952073f38340769b8fbca5b23.png)
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2022-12-15更新
|
786次组卷
|
2卷引用:上海市普陀区2023届高考一模数学试题
解题方法
7 . 已知曲线E:
的左右焦点为
,
,P是曲线E上一动点
(1)求
的周长;
(2)过
的直线与曲线E交于AB两点,且
,求直线AB的斜率;
(3)若存在过点
的两条直线
和
与曲线E都只有一个公共点,且
,求h的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4279b97cd056350b8edb171a1476f4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4f755709086891078194452d233ebb.png)
(3)若存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb977f1e7d579c281d9541670882f78.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)
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名校
解题方法
8 . 已知椭圆
:
的长轴长为
,离心率为
,斜率为
的直线
与椭圆
有两个不同的交点A,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求椭圆
的方程;
(2)若直线
的方程为:
,椭圆上点
关于直线
的对称点
(与
不重合)在椭圆
上,求
的值;
(3)设
,直线
与椭圆
的另一个交点为
,直线
与椭圆
的另一个交点为
,若点
,
和点
三点共线,求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.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/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aeabebd5bd9968bf5604ae1243476b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/258b761f7186572cbc5e84202498e300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328aaba77106396d4ca644c8b7a352e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a94b5cff078087522057ecfa50062b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2022-12-07更新
|
1540次组卷
|
6卷引用:上海市松江区2023届高考一模数学试题
上海市松江区2023届高考一模数学试题上海市格致中学2022-2023学年高二下学期期中数学试题上海市部分学校2024届高三上学期开学暑假作业检测数学试题湖北省新高考联考协作体2022-2023学年高二上学期期末模拟数学试题(已下线)期末押题预测卷01(范围:选择性必修第一册、数列)-【单元测试】2022-2023学年高二数学分层训练AB卷(人教A版2019)(已下线)重难点突破10 圆锥曲线中的向量问题(五大题型)
名校
解题方法
9 . 如图,已知半圆C1:
与x轴交于A、B两点,与y轴交于E点,半椭圆C2:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc35409c8054fe18431c70e6fea0334.png)
的上焦点为F,并且
是面积为
的等边三角形,将由C1、C2构成的曲线,记为“Γ”.
(2)直线l:
与曲线Γ交于M、N两点,在曲线Γ上再取两点S、T(S、T分别在直线l两侧),使得这四个点形成的四边形MSNT的面积最大,求此最大面积;
(3)设点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7296bf80a4e4f4d1d7dfbfac932f501b.png)
,P是曲线Γ上任意一点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4d6974ef64ca22bfcc21b89f1acd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc35409c8054fe18431c70e6fea0334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dc1fd99348d416fa10a5aa050da2fbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(2)直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bdeeb6f5e38e3464c357d00839a6ce.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7296bf80a4e4f4d1d7dfbfac932f501b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe769c9fc76089fad3e748178fbaeb09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c687dd603610c9cd384ba2202e37e52.png)
您最近一年使用:0次
2023-08-17更新
|
653次组卷
|
12卷引用:上海市进才中学2020-2021学年高二上学期期末数学试题
上海市进才中学2020-2021学年高二上学期期末数学试题(已下线)专题4.2 圆锥曲线【压轴题型专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)上海市复兴高级中学2020-2021学年高二下学期期中数学试题上海市七宝中学2021-2022学年高二下学期开学考数学试题上海市南汇中学2022-2023学年高二下学期期中数学试题(已下线)高二下期中真题精选(易错46题专练)-【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)(已下线)专题02 圆锥曲线--高二期末考点大串讲(沪教版2020选修)重庆市第一中学校2023-2024学年高二上学期9月月考数学试题(已下线)第三章 圆锥曲线的方程(易错必刷30题9种题型专项训练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)广东省惠州市2024届高三上学期第三次调研考试数学试题广东省惠州市2024届高三上学期第三次调研考试数学试题(已下线)黄金卷07(2024新题型)
名校
解题方法
10 . 已知椭圆
的两个顶点
,且其离心率为
.
(1)求椭圆Γ的方程;
(2)设过椭圆Γ的右焦点F的直线与其相交于A,B两点,若
(O为坐标原点),求直线AB的方程;
(3)设R为椭圆Γ上的一个异于M,N的动点,直线MR,NR分别与直线
相交于点P,Q,试求|PQ|的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e31f17d3eae2f76500ee2e8f955865.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed18d5eb40de11f974b58f63cb0a8a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆Γ的方程;
(2)设过椭圆Γ的右焦点F的直线与其相交于A,B两点,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
(3)设R为椭圆Γ上的一个异于M,N的动点,直线MR,NR分别与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6280959e386eed67ce5d6f8da5dcdc.png)
您最近一年使用:0次
2023-03-26更新
|
328次组卷
|
4卷引用:上海市虹口区2021-2022学年高二下学期期末在线测试数学试题
上海市虹口区2021-2022学年高二下学期期末在线测试数学试题(已下线)核心考点04抛物线、曲线与方程(2)(已下线)重难点03圆锥曲线综合七种问题解题方法-【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)辽宁省六校协作体2023-2024学年高二上学期12月联考数学试题