名校
解题方法
1 . 已知双曲线
的虚轴长为
,点
在
上.设直线
与
交于
两点(异于点
),直线
与
的斜率之积为
.
(1)求
的方程.
(2)证明:直线
的斜率存在,且直线
过定点.
(3)求直线
斜率的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ad1d8d2459b942a3d59f52b437e55d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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名校
解题方法
2 . 已知曲线
,曲线
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8afba75dac7dd121de3a5d76393be3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c629a4f2909d5a49f1e92b50771a6be6.png)
A.![]() ![]() |
B.若![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.若![]() ![]() ![]() |
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3 . 设
为抛物线
的焦点,若点
在
上,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380c8ff22997421404c4f0d0708ab126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbcf0320d94734aedd3d4e2e31b9827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12dc1bdded62dae38ef3bd02e886757a.png)
A.3 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-06-03更新
|
548次组卷
|
2卷引用:2024年辽宁省普通高等学校招生全国统一考试(模拟1)数学试题
2024·全国·模拟预测
解题方法
4 . 已知椭圆
的左、右焦点分别为
,离心率为
,点
在椭圆
上,且
,
的面积为
,则椭圆
的焦距为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c14ff9b66f21c05e52dc3c8908c2df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9766e5e316ac8e8ecae1779070799a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2793aa39b517d1a5e7ca2d8243710c8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.![]() | B.![]() | C.6 | D.12 |
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5 . 一般地,抛物线的三条切线围成的三角形称为抛物线的切线三角形,对应的三个切点形成的三角形称为抛物线的切点三角形.如图,
,
分别为抛物线
的切线三角形和切点三角形,
为该抛物线的焦点.当直线
的斜率为
时,
中点的纵坐标为
.
.
(2)若直线
过点
,直线
分别与该抛物线的准线交于点
,记点
的纵坐标分别为
,证明:
为定值.
(3)若
均不与坐标原点重合,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed4022e6522665dab4ce898a539e5c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6d8eaacc2d999b37209feba103f9ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c0ba21d81e9f78014ea501cd494af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26690f078768c54d833988769b8bc425.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120c51a5eda9524a1e187420c0c8bac6.png)
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2024高三·全国·专题练习
解题方法
6 . 已知双曲线
的左焦点
、右焦点
分别为双曲线
的左、右顶点,过
的直线分别交双曲线
的左、右两支于点
,交双曲线
的右支于点
(与
不重合),
关于
的一条渐近线的对称点为
,且
与
的周长之差为2,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87e09a56c608e418a5128f3eb32940e6.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/b80c87c91534b4adc427105595670200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47444b5fbc4252516d54263062e47c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
A.双曲线![]() |
B.![]() ![]() |
C.过点![]() ![]() ![]() ![]() |
D.若直线![]() ![]() ![]() ![]() |
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名校
解题方法
7 . 双曲线的第三定义是:到两条相交直线的距离之积是定值的点的轨迹是(两组)双曲线.人教A版必修第一册第92页上“探究与发现”的学习内容是“探究函数
的图象与性质”,经探究它的图象实际上是双曲线.进一步探究可以发现对勾函数
,
的图象是以直线
,
为渐近线的双曲线.现将函数
的图象绕原点顺时针旋转得到焦点位于
轴上的双曲线
,则它的离心率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1305b9abebd7bef3171486df157286b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad123b73302cb4ea2d0a30bd912ec42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796ab7e8f61b6ef34646bac6ab4c380a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1447dbe580ac5c825776995118e75acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1305b9abebd7bef3171486df157286b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-27更新
|
408次组卷
|
2卷引用:辽宁省沈阳第二中学2024届高三第四次模拟考试数学试卷
名校
8 . 一般地,我们把离心率为
的椭圆称为“黄金椭圆”,则下列命题正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
A.椭圆![]() |
B.若椭圆![]() ![]() |
C.设“黄金椭圆”C的左右焦点分别为![]() ![]() |
D.设过原点的直线与焦点在x轴上的“黄金椭圆”分别交于A、B两点,“黄金椭圆”上动点P(异于A,B),设直线PA,PB的斜率分别为![]() ![]() |
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名校
解题方法
9 . 设O为坐标原点,
为双曲线
的两个焦点,点P在C上,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97027a5dd71bb14db141ae54ab6428e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f6e794bb451146907682a411f3855aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
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解题方法
10 . 设抛物线
的方程为
,
为直线
上任意一点;过点
作抛物线
的两条切线MA,MB,切点分别为A,B(A点在第一象限).
(1)当M的坐标为
时,求过M,A,B三点的圆的方程;
(2)求证:直线AB恒过定点;
(3)当m变化时,试探究直线l上是否存在点M,使
为直角三角形,若存在,有几个这样的点,说明理由;若不存在,也请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad696f38c4e395e13ca8ff0beaafef5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)当M的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd5f27c5f8a8cda3403c73108dfd30c.png)
(2)求证:直线AB恒过定点;
(3)当m变化时,试探究直线l上是否存在点M,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
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