20-21高二上·全国·课后作业
解题方法
1 . 已知双曲线C:
=1的开口比等轴双曲线的开口更开阔,则实数m的取值范围是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1efecc4674021580920509e0e21b1587.png)
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2 . 已知双曲线
的离心率为
,则其标准方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fb98416081f63c9dca258502e7e8d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2021-03-03更新
|
99次组卷
|
2卷引用:海南省海南鑫源高级中学2019-2020学年高二上学期期末考试数学试题
解题方法
3 . 已知
:方程
表示焦点在
轴上的椭圆,
:双曲线
的离心率
.
(1)若椭圆
的焦点和双曲线
的顶点重合,求实数
的值;
(2)若
与
均是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cecde767fa7f83184bb626a3aa000142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f508034489f1237a141ce9c472b72c07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0b2e46ce5d0706160c2ba6a11c8c97.png)
(1)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cecde767fa7f83184bb626a3aa000142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f508034489f1237a141ce9c472b72c07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 已知椭圆
,双曲线
,
为
的焦点,
为
和
的交点,若△
的内切圆的圆心的横坐标为2,
和
的离心率之积为
,则该内切圆的半径为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b290c454f7a0c796abf528aad227e530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/bd5a8e1bc9748e5519dcd9981b7eb251.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/a4b8503f4706b8321e4e79a87eadea84.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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5 . 已知
,命题
双曲线
的离心率
;命题
方程
表示焦点在x轴上的椭圆,若命题p和命题q有且只有一个为真命题,则实数m的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a973773a0215953ee003b1f2659a20d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d8d977c88971c80f2edc95f6c8a2be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e68758aaed1de3344bee8b0808be4b0.png)
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2020高三·全国·专题练习
6 . 已知双曲线
的离心率e<2,则实数k的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f46c40efccc855e3cfb785142fc4f5f.png)
A.k<0或k>3 | B.-3<k<0 | C.-12<k<0 | D.-8<k<3 |
您最近一年使用:0次
名校
7 . 已知离心率为2的双曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1542c48f287494f0c5f70a5c9eb6bfd.png)
的焦点与椭圆
的焦点重合,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1542c48f287494f0c5f70a5c9eb6bfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae4d01ba100c98cbbd14ad311dacdd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82766cfd2b7c59c7fac5b827ae5863b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
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20-21高二·全国·假期作业
8 . 已知双曲线
:
(
,
)离心率为
,
、
分别为左、右顶点,点
为双曲线
在第一象限内的任意一点,点
为坐标原点,若
、
、
的斜率分别为
、
、
,设
,则
的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.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/61128ab996360a038e6e64d82fcba004.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](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/ef49a3ca580a144cc65a609c167facc1.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/dbf434334b09cc0fdd4e86e84e6ceb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9f154f6d5c5ff1618dae3a8a0900d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2021-01-02更新
|
607次组卷
|
7卷引用:专题05+双曲线小题专项练习-2020-2021学年【补习教材·寒假作业】高二数学(人教A版2019)
9 . 已知命题
:原点到直线
的距离小于1;
:方程
表示离心率小于
的双曲线.
(1)若
为真,求
的取值范围;
(2)判断
是
的什么条件,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1970f9c78ed513e3710299ade4ac4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd41fd4bc444911a26c1e14d0439464.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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2020-12-30更新
|
61次组卷
|
2卷引用:河南省新乡、焦作市部分学校联考2020-2021学年高二上学期12月月考数学(理)试题
10 . 已知双曲线
的离心率为
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a33adcbed89e81a6f835f8fc9291cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8f7e40ba386c0a9675896b52752d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次