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1 . 给出如下四个命题正确的是( )
A.方程![]() |
B.椭圆![]() ![]() |
C.抛物线![]() ![]() |
D.双曲线![]() ![]() |
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2 . 已知双曲线
(
,
)的离心率为
,则C的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/044468f3733869bd186eb663ff0bb371.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-01-14更新
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5卷引用:吉林省长春市长春外国语学校2022-2023学年高二上学期期末数学试题
3 . 已知
,
是椭圆
长轴上的两个端点,
是椭圆上一点,直线
,
的斜率分别为
,
,若椭圆的离心率为
,则
( )
![](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/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d82f6055983b8e9bb5a9cd8e09ebe5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-01-14更新
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425次组卷
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3卷引用:吉林省长春市长春外国语学校2022-2023学年高二上学期期末数学试题
吉林省长春市长春外国语学校2022-2023学年高二上学期期末数学试题内蒙古通辽市重点校2022-2023学年高二下学期适应性考试数学(文)试题(已下线)第五篇 向量与几何 专题4 极点与极线 微点5 极点与极线综合训练
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解题方法
4 . 如图,
、
是双曲线
与椭圆
的公共焦点,点A是
、
在第一象限的公共点,设
的方程为
,则下列命题中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/30/6226fc57-f534-48ca-802d-1311a44338a8.png?resizew=203)
![](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/f9373ed257f417b493c489c8caeabeb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/30/6226fc57-f534-48ca-802d-1311a44338a8.png?resizew=203)
A.![]() |
B.![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() |
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2023-01-14更新
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513次组卷
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3卷引用:吉林省长春市长春外国语学校2022-2023学年高二上学期期末数学试题
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5 . 抛物线
的准线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 已知双曲线
:
的左、右两焦点分别为
、
,
为
上一点,且
.
(1)求双曲线
的方程;
(2)是否存在直线
,使
被
所截得的弦
的中点坐标是
?若存在,求出直线
的方程,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93212d7e58e421170d19d6c945f3faad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a95ac87b3c0e0d9a558877aeb2212a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776e91ba93f41f45c7509cfe6613419.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97caea8ea20c118920d887d2ee9ac83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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7 . 已知抛物线C:
的焦点为F,点
在抛物线C上,且
.
(1)求抛物线C的方程;
(2)直线FM与抛物线C交于A点,O为坐标原点,求
面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21320585c32c9b56ed9c6d3af04250b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09da5b6dcaffd97a97153ae647f8f909.png)
(1)求抛物线C的方程;
(2)直线FM与抛物线C交于A点,O为坐标原点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68881c60c4d8296162122ca5958e2bc0.png)
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8 . 设抛物线C:
的焦点为F,准线为l,
为C上一动点,点
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088fcdd595455906a1a7080d630611f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
A.焦点到准线的距离是8 |
B.当![]() ![]() |
C.![]() |
D.![]() ![]() |
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解题方法
9 . 已知抛物线
的焦点F到准线的距离为2.
(1)点P在抛物线上,且
,求点P的坐标;
(2)直线
交抛物线于A,B两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
(1)点P在抛物线上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c9aa5dc8e688868ad3eac88714cd51.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026808536f6b6d265c778e23836fbf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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10 . 过点
作直线与抛物线
相交于A,B两点,若点P是线段
的中点,则直线
的方程是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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