1 . 已知函数
的图象与
轴有且仅有两个交点,则实数
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eadc00b03b1ca2bfe28700c0fa0b384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.0 |
您最近一年使用:0次
解题方法
2 . 已知椭圆
的离心率为
;直线
与
只有一个交点.
(1)求
的方程;
(2)
的左、右焦点分别为
上的点
(
两点在
轴上方)满足
.
①试判断
(
为原点)是否成立,并说明理由;
②求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9350036344273cd5d077f5066a1e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90ff138a12d957605d7633d4633e1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a6e2e2fd460de8f49b81554b1ae36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a6e2e2fd460de8f49b81554b1ae36e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/917f3c9ac241ee922574d8e4028d6a11.png)
①试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246ccbc152af7621bfb5f908e585670b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
②求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946d31a242044519078c3503f590c27e.png)
您最近一年使用:0次
解题方法
3 . 若直线
与抛物线
和圆
从左到右依次交于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a4524b421a9b635f86fff5cf4e44c1.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c1053ca52f2879c7f8bb8a40dceb3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191e30bd3393e4a8d4be3f06c90549ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e997474d753f7faca94009a42f7ae014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db2ca6d163be93b18959beb75ac588b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a4524b421a9b635f86fff5cf4e44c1.png)
您最近一年使用:0次
解题方法
4 . 已知椭圆
:
(
)的焦距为2,离心率为
.
(1)求椭圆
的方程;
(2)若直线
与椭圆
交于
,
两点,
为坐标原点,且
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54479885d4ab2f717d2e97718da04b43.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
5 . 已知函数
的导函数为
.
(1)讨论
的单调性;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8ec8682093cc949e7ef95e5dbeb417.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf963762f098eabb1274f306d7e7f69.png)
您最近一年使用:0次
解题方法
6 . 设
为双曲线
的上、下焦点,点
为
的上顶点,以
为直径的圆交
的一条渐近线于
两点,若
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be8df665f287ebc58f9ace14a8a741e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0897c812d139212095773a19dc4ea464.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 已知
为函数
的导函数.
(1)讨论
的单调性;
(2)若
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c64cd37f63b0d00bd8054b6666ab6ef.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b06387179d53c1e474fcfcb408b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee4c3872583bef56de103e4a4df05838.png)
您最近一年使用:0次
2024-04-18更新
|
1661次组卷
|
3卷引用:陕西省榆林市2023-2024学年高三第二次模拟检测数学(理科)试题
陕西省榆林市2023-2024学年高三第二次模拟检测数学(理科)试题河北省邢台市五岳联盟2023-2024学年高二下学期3月月考数学试题(已下线)2.6 导数及其应用(不等式、函数零点)(高考真题素材之十年高考)
解题方法
8 . 已知抛物线
经过点
,写出
的一个标准方程:__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c53c2ce5532642de107e0d85c75f3e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2024-04-15更新
|
345次组卷
|
2卷引用:陕西省榆林市2023-2024学年高三第二次模拟检测数学(理科)试题
解题方法
9 . 已知椭圆
的左、右焦点分别为
,
过点
,且
.
(1)求
的方程.
(2)设
的右顶点为点
,过点
的直线
与
交于
两点(异于
),直线
与
轴分别交于点
,试问线段
的中点是否为定点?若是,求出该定点的坐标;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e1fa617863e37a37908aba227fce3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c2dd92c88c78932d0c1e0b49297539.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f4d0bdfb87211c2362212cacaabf4b.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
10 . 已知曲线
与曲线
的公共点为
,则曲线
在点
处的切线与坐标轴围成的三角形的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b070feff11197d4f64332d1b737d0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c49f2aa09c6fba94270d79cb97827fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c49f2aa09c6fba94270d79cb97827fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次