名校
解题方法
1 . 已知
为抛物线
:
的焦点,
,
,
是
上三个不同的点,直线
,
,
分别与
轴交于
,
,
,其中
的最小值为4.
(1)求
的标准方程;
(2)
的重心
位于
轴上,且
,
,
的横坐标分别为
,
,
,
是否为定值?若是,请求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1aa2a5e31d553cfab95eed01ec715d5.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276509f01529d982ab21e479a4619268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5dc044cb3f14963bdf36eba6611cfcf.png)
您最近一年使用:0次
解题方法
2 . 已知
分别是椭圆
的右顶点,上顶点和右焦点,若过
三点的圆恰与
轴相切,则
的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016e82617e4586c46e55b27cd604db1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016e82617e4586c46e55b27cd604db1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
名校
解题方法
3 . 双曲线C:
的离心率为
,点
在C上.
(1)求C的方程;
(2)设圆O:
上任意一点P处的切线交C于M、N两点,证明:以MN为直径的圆过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46529ee9b4550db1c12f187e1fbebde0.png)
(1)求C的方程;
(2)设圆O:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
您最近一年使用:0次
2024-05-17更新
|
515次组卷
|
3卷引用:广东省广州市广雅中学2024届高三下学期教学情况检测(二)数学试题
4 . 已知抛物线C:
(
)的焦点为F,C的准线与x轴的交点为M,点P是C上一点,且点P在第一象限,设
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf050f3aca32cf6a32e1282a606ee7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f8308bd51c4764f4ce5fee8ddb24dd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-05-16更新
|
484次组卷
|
2卷引用:广东省茂名市高2024届高三下学期高考模拟数学试题
名校
解题方法
5 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)当
时,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0519ab55b1cd35caa55543af772e17da.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4dde954ab58019970e727bac75321e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dcff008a4ed14c3ecc877cb831565a1.png)
您最近一年使用:0次
2024-05-16更新
|
1156次组卷
|
2卷引用:广东省高州市2024届高三下学期适应性考试数学试题
6 . 设满足方程
的点
,
的运动轨迹分别为曲线
、
,若在区间
内,曲线
、
有两个交点(其中
是自然对数的底数),则实数
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82ed6ddd07f658822ada7fc1a365e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4580155b624aec450548a7e0ff7d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64388ef0c3b5434e4894af59da0a55ec.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/c039229438e84ec0057beef352307f65.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/797bbd18359c9a29842b39109b3a0aac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
7 . 如图,矩形
中,
,
.
、
、
、
分别是矩形四条边的中点,设
,
.
与
的交点
在椭圆
:
上;
(2)已知
为过椭圆
的右焦点
的弦,直线
与椭圆
的另一交点为
,若
,试判断
、
、
是否成等比数列,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e39fda3cda5ddc03b085413f2030aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f17edac849a0691e52146021e05d83e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c97826ac106f5f52aba70a490617df5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b6b1972e45108889781ed1dd7ddcd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba28c45f78fb7643ec9781a800271cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7ebdc16bd34f6daddd1a988ab2ac68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfef623a9534b5708df5f95f1760a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c55885a1d570815af33936d4d3e1d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d87446c9ef0230285d9b08127fce5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb40dae2b0f4048d3fabff25e6cbe443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d76468043c2c7b5a8050a82471c161.png)
您最近一年使用:0次
解题方法
8 . 已知椭圆的长轴长是短轴长的
倍,则该椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 已知双曲线
的左右焦点分别为
,左顶点为
,点
是
的右支上一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b30352c43707c4e54b94ce5b61f2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() |
B.若直线![]() ![]() ![]() ![]() |
C.![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2024-05-14更新
|
819次组卷
|
3卷引用:广东省广州市2024届普通高中毕业班综合测试(二)广州二模数学试卷
广东省广州市2024届普通高中毕业班综合测试(二)广州二模数学试卷(已下线)第六套 艺体生新高考全真模拟 (二模重组卷)吉林省长春市东北师范大学附属中学2023-2024学年高三下学期第七次模拟考试数学试卷
名校
10 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3dde7a56984f02a0282998ec6b2f05.png)
A.![]() ![]() | B.![]() ![]() ![]() |
C.![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2024-05-14更新
|
1118次组卷
|
3卷引用:广东省广州市2024届普通高中毕业班综合测试(二)广州二模数学试卷
广东省广州市2024届普通高中毕业班综合测试(二)广州二模数学试卷江西省宜春市宜丰中学2023-2024学年高二下学期6月月考数学试题(创新部)(已下线)第三章 第一节 导数的概念及运算【同步课时】提升卷