1 . 若双曲线
的一条渐近线方程为
,则其离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知双曲线
与椭圆
有相同的焦点.
求双曲线
的方程;
以
为中点作双曲线
的一条弦
,求弦
所在直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5856a99fa59fa99e78257795a3689726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c763113a1fc48e8acc83787b8cd24eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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名校
3 . 如图,四棱锥
中,底面
是边长为
的正方形,
平面
,
为底面
内的一动点,若
,则动点
的轨迹在( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/dc8c97b1-4357-4a95-a73d-e2b64b4f9b89.png?resizew=152)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c83f8945042b9c8fb2fbdac9308d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/629564b4011866ed8753e064dff78252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/1/dc8c97b1-4357-4a95-a73d-e2b64b4f9b89.png?resizew=152)
A.圆上 | B.双曲线上 | C.抛物线上 | D.椭圆上 |
您最近一年使用:0次
2020-02-01更新
|
278次组卷
|
3卷引用:山东省淄博市2019-2020学年高二上学期期末数学试题
4 . 方程为
和
的两条曲线在同一坐标系中可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50adf6eecebf27c7fdebeb9bea6c49b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb98c0b0ddd1ea22825b73fd6899bce.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 已知在平面直角坐标系
中,椭圆
过点
,离心率为
.
求椭圆
的标准方程;
过右焦点
作一条不与坐标轴平行的直线
,交椭圆
于
两点,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1721aa6b62fc4c68cb7161f2658117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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6 . 已知线段
所在的直线与平面
相交于点
,且与平面
所成的角为
,
,
,
为平面
内的两个动点,且
,
,则
,
两点间的最小距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cef568cfe2fc12a4dec11533ada274.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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce5256233ba43fccd2732b983d533f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4dbea6a5faecdd8f6c06cf9fd43a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
A.![]() | B.1 | C.![]() | D.![]() |
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解题方法
7 . 已知双曲线:
1,左右焦点分别为
,
,过
的直线
交双曲线左支于
,
两点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f332568a1941e7ea88a753e26bbc7da1.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/0f85fca60a11e1af2bf50138d0e3fe62.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/96d2e33ba1c58a689077b28de81df510.png)
A.![]() | B.11 | C.12 | D.16 |
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解题方法
8 . 在直角坐标系中,已知椭圆
经过点
,且其左右焦点的坐标分别是
,
.
(1)求椭圆
的离心率及标准方程;
(2)设
为动点,其中
,直线
经过点
且与椭圆
相交于
,
两点,若
为
的中点,是否存在定点
,使
恒成立?若存在,求点
的坐标;若不存在,说明理由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cac72ae550626c8583e4466b8b33d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbcd0aebdd8bd688d108834747009f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159cee4c6a18163601ff249fafde685d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d016c583f88a262712025dcda7721980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/b5c65d33a5a770f391d62f6ade800287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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名校
9 . 抛物线
的焦点坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f4123c19136d3a4dc040dce8e34e14.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-01-20更新
|
1217次组卷
|
14卷引用:2015-2016学年山东省淄博淄川一中等高二上期末文科数学试卷
2015-2016学年山东省淄博淄川一中等高二上期末文科数学试卷【校级联考】黑龙江省龙东南七校2018-2019学年高二上学期期末联考数学(文)试题安徽省六安市舒城中学2019-2020学年高二上学期期末数学(理)试题天津市滨海新区2020-2021学年高二上学期期末数学试题广东省广州市越秀区2021-2022学年高二上学期期末数学试题湖北省武汉市四校联合体2021-2022学年高二上学期期末考试数学试题四川省眉山市仁寿县2023-2024学年高二上学期1月期末模拟联考数学试题天津市滨海新区2023-2024学年高二上学期期末质量检测数学试题江西省九江市2023-2024学年高二上学期期末考试数学试题内蒙古包头市第四中学2018-2019学年高二下学期期中数学(理)试题浙江省“七彩阳光”新高考研究联盟2018-2019学年高二下学期期中联考数学试题安徽省六安市第一中学2021-2022学年高二上学期期中数学试题河南省焦作市普通高中2021-2022学年高二下学期期中考试试卷文科数学试题 河南省焦作市普通高中2021-2022学年高二下学期期中考试试卷理科数学试题
名校
10 . 设双曲线M:
1(a>0,b>0)的上顶点为A,直线y
与M交于B,C两点,过B,C分别作AC,AB的垂线交于点D若D到点(0,2
)的距离不超过8
7a,则M的离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b93d6c18da9deb8841a22ce5158ebc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a79db8bdf0884d9fc76d0740eb82f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f47502c05144c3b9192846d7f5533b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38a4a339a0910dd6710d337ca706676.png)
A.[![]() | B.[![]() | C.(1,![]() | D.(1,![]() |
您最近一年使用:0次
2020-01-10更新
|
659次组卷
|
12卷引用:山东省淄博市部分学校2018-2019学年高二上学期期末考试数学试题
山东省淄博市部分学校2018-2019学年高二上学期期末考试数学试题【市级联考】辽宁省辽阳市2018-2019学年高二上学期期末考试数学(理)试题【市级联考】辽宁省辽阳市2018-2019学年高二上学期期末数学试题(理科)【市级联考】吉林省白山市2018-2019学年高二上学期期末联考数学(理)试题河北省承德市2018-2019学年高二上学期期末数学(理)试题河南省2018-2019学年高二上学期期末数学(理)试题贵州省黔南州2018-2019学年高二上学期期末考试数学(理)试题山西省2018-2019学年高二上学期期末联合考试数学(理)试题云南省曲靖市沾益县第四中学 2020-2021学年高二上学期期末数学(理)试题山西省山西名校2020-2021学年高二上学期期末数学(理)试题四川省泸州市泸县第五中学2019-2020学年高二下学期第一次在线月考数学(理)试题河南省豫北名校2020-2021学年高二上学期12月质量检测数学(理)试题