解题方法
1 . 设椭圆
:
的左、右焦点分别为
,
,离心率为
,短轴长为
.
(1)求椭圆C的标准方程;
(2)设不过点
的直线
与椭圆
交于不同的两点
,
,若点
在以线段
为直径的圆上,证明直线
恒过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(1)求椭圆C的标准方程;
(2)设不过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb0ef5e6c3771175aff1b8fc9e17110.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2 . 形如
的函数是中学数学常见的函数模型之一,因其图象上半部分像极了老师批阅作业所用的“√”,所以也称为“对勾函数”.研究证明,对勾函数可以看作是焦点在坐标轴上的双曲线绕原点旋转得到,即对勾函数的图象是双曲线,直线
是它的一条渐近线.点
是双曲线
上任意一点,在点
处作双曲线的切线,交渐近线于
两点,已知
为坐标原点,则
的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dac232e345d6a0d28050cbd3530b836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1447dbe580ac5c825776995118e75acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe070bbd212e64ee71cd3d6c6b3612c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
2023-09-23更新
|
288次组卷
|
3卷引用:四川省南充市2024届高三高考适应性考试(零诊)文科数学试题
四川省南充市2024届高三高考适应性考试(零诊)文科数学试题四川省南充市2024届高三高考适应性考试(零诊)理科数学试题(已下线)湖南省长沙市长郡中学2024届高三上学期月考(二)数学试题变式题6-10
解题方法
3 . 已知点F是抛物线
的焦点,动点P在抛物线上.
(1)写出抛物线的焦点坐标和准线方程;
(2)设直线
与抛物线交于D,E两点,若抛物线上存在点P,使得四边形
为平行四边形,证明:直线
过定点,并求出这个定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
(1)写出抛物线的焦点坐标和准线方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b8db7b0199e77f81433d385180e01f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023·全国·模拟预测
解题方法
4 . 已知椭圆
的长轴长为4,且椭圆
经过点
.
(1)求椭圆
的标准方程;
(2)若过点
的直线与椭圆
交于
两点,直线
与弦
交于点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e454c7161999e2a67138869f59d319b.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436a0e9cea21b0174bc40e2af8cc03f6.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/c1da6cc56e762bd11aa8e10476bea394.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/f2fe6f1def219e2ff04ddb2f929f98e5.png)
您最近一年使用:0次
解题方法
5 . 已知椭圆
,点A,B为椭圆C的左右顶点(A点在左),
,离心率为
.
(1)求椭圆C的标准方程;
(2)过点
的直线
与椭圆C交于
(与A,B不重合)两点,直线
与
交于点P,证明:点P在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179d7920ec6cd22f3a0cfa6738260153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
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2024-01-26更新
|
274次组卷
|
2卷引用:四川省成都市郫都区2024届高三上学期阶段检测(三)文科数学试卷
名校
6 . 设函数
,
,其中
,
.
(1)求
的单调区间;
(2)设
,函数
,求证:
在区间
上的最大值不小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34001041bb3cbe0ce8ec89efd0cd9df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafce249be1aeee0581417db4ce841db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d165b3397aab477869842a16b7ff6aa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534ffd1dd846f0ac5b8f3747d94f0501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
,且
.
(1)求实数a的取值范围;
(2)已知
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c918490d4b376aae0a92c1be7d4302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(1)求实数a的取值范围;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d062874efc06af87693c548b09fbc91.png)
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2023-09-16更新
|
982次组卷
|
5卷引用:四川省绵阳市涪城区南山中学2023届高三仿真理科数学试题
四川省绵阳市涪城区南山中学2023届高三仿真理科数学试题河南省郑州外国语学校2023-2024学年高三上学期第三次调研考试数学试题湖北省黄冈市浠水县第一中学2024届高三上学期9月质量检测数学试题(已下线)考点20 导数的应用--不等式问题 2024届高考数学考点总动员河北省石家庄二中2023-2024学年高二下学期3月月考数学试题
名校
解题方法
8 . 已知拋物线的顶点在原点,对称轴为
轴,且经过点
.
(1)求抛物线方程;
(2)若直线
与抛物线交于
两点,且满足
,求证: 直线
恒过定点,并求出定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbcf0320d94734aedd3d4e2e31b9827.png)
(1)求抛物线方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee808a07c981406a44a69cb124792071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2023-09-07更新
|
471次组卷
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4卷引用:四川省盐亭中学2022-2023学年高二上学期期中数学(理)试题
9 .
为抛物线
:
上一点,过
作两条关于
对称的直线分别交
于
,
两点.
(1)证明:直线
的斜率为定值,并求出该定值;
(2)若
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2007972af3341f27fbc32ce62dfce5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec68c680d1b8c8cfa98b48a27d2c46a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b1ef42dc8e1034dafa947ea9b640f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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名校
解题方法
10 . 已知椭圆
过点
两点,椭圆的离心率为
,
为坐标原点,且
.
(1)求椭圆
的方程;
(2)设P为椭圆
上第一象限内任意一点,直线
与y轴交于点M,直线
与x轴交于点N,求证:四边形
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d2c2aef4a4ac15f9172a80b1b79fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38a158c72b071561459803ae1b950d22.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设P为椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/e53abbd672b82a02c4975f99fbbd2c37.png)
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2023-09-05更新
|
1129次组卷
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9卷引用:四川省成都市成都外国语学校2024届高三上学期期中数学(理)试题
四川省成都市成都外国语学校2024届高三上学期期中数学(理)试题四川省成都市成都外国语学校2024届高三上学期期中数学(文)试题安徽省安庆市第一中学2022届高三第三次模拟考试文科数学试题安徽省安庆市第一中学2022届高三第三次模拟考试理科数学试题 (已下线)第08讲 直线与圆锥曲线的位置关系(练习)(已下线)重难点突破16 圆锥曲线中的定点、定值问题 (十大题型)-1(已下线)专题11 圆锥曲线(4大易错点分析+解题模板+举一反三+易错题通关)(已下线)模块三 专题5 大题分类练(解析几何)拔高能力练(已下线)信息必刷卷05(江苏专用,2024新题型)