1 . 已知点
是椭圆
上的任意一点,
是它的两个焦点,
为坐标原点,动点
满足
.
(1)求动点
的轨迹
的方程;
(2)若与坐标轴不垂直的直线
交轨迹
于A,B两点且OA⊥OB,求
面积S的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0cc36f00c32f38c72b7c665d0549bfa.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若与坐标轴不垂直的直线
![](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/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
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2 . 已知双曲线
的渐近线与实轴的夹角为
,则双曲线的离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32f45a5cb16542e7553f2d9aeabdb23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7408f4e5fbc936c79089b25ecb1cce.png)
A.![]() | B.![]() | C.![]() | D.2 |
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9-10高二下·广东河源·期末
3 . 双曲线
的离心率
,则实数k的取值范围是
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827427196928/1569827432038400/STEM/5d59ad6153a5465f81721a41545115f7.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827427196928/1569827432038400/STEM/af975135a4d245f4bf94033cfc0766e5.png)
A.(0,4) | B.(-12,0) | C.![]() | D.(0,12) |
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10-11高二上·广东惠州·期末
名校
4 . 一条渐近线方程是
的双曲线,它的一个焦点与方程是
的抛物线的焦点相同,此双曲线的标准方程是_______________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05063aa8290b34b56ac3b6193cba95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290a56449ad6dd65aec7525c94273f59.png)
您最近一年使用:0次
2016-11-30更新
|
1112次组卷
|
5卷引用:2010-2011年广东省龙川一中高二第二学期3月月考数学理卷
(已下线)2010-2011年广东省龙川一中高二第二学期3月月考数学理卷(已下线)2010年广东省惠州一中高二第一学期期末测试数学理卷贵州省铜仁市第一中学2017-2018学年高二下学期开学考试数学(文)试题贵州省铜仁市第一中学2017-2018学年高二下学期开学考试数学(理)试题宁夏银川唐徕回民中学2019-2020学年高二12月数学(理)试题
9-10高二下·广东湛江·期末
5 . 若椭圆
:
的离心率等于
,抛物线
:
的焦点在椭圆的顶点上.
(1)求抛物线
的方程;
(2)求过点
的直线
与抛物线
交
、
两点,又过
、
作抛物线
的切线
、
,当
时,求直线
的方程.
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/753ab25c63f543dd97886deab995a549.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/1f2411a3abe64f23960af541f2debe04.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/534082123bf34a8eb733c8db82a640a5.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/0b9c172c923144aeb2a061b676762c00.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/8b5e23d8d45b4ee086897fb27c99d0f6.png)
(1)求抛物线
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/0b9c172c923144aeb2a061b676762c00.png)
(2)求过点
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/d56f0256a3d84dd4ad8a8279b541bcf7.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/82fdf7febabc47a1bfc3f8ec671019b8.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/0b9c172c923144aeb2a061b676762c00.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/a206d3b71c004cbebb85fb7efab794d2.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/0311fcf433e44afb84f7531660761706.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/a206d3b71c004cbebb85fb7efab794d2.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/0311fcf433e44afb84f7531660761706.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/0b9c172c923144aeb2a061b676762c00.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/aa3b16f200424385a8eb7cb242c99e25.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/0a421abc83144e72a6b4f52fc1816a35.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/ccf0a48b49784773a18a44a26d6bcb4d.png)
![](https://img.xkw.com/dksih/QBM/2010/9/7/1569827207872512/1569827213123584/STEM/82fdf7febabc47a1bfc3f8ec671019b8.png)
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