名校
1 . 已知函数
.
(1)讨论函数
的单调性;
(2)若
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7010280bfdc79bf1bcf763729037567.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3e321b0932323e063aa03470db808b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 已知函数
.
(1)若函数
的图象与直线
相切,求
的值;
(2)求证:对任意
,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075acd2e3206f43b6819de40a116bfeb.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54479885d4ab2f717d2e97718da04b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982d77ff93ed69e619f6aaf26ee64e7f.png)
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名校
解题方法
3 . 已知函数
.
(1)求
的最值;
(2)若
时,恒有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b533c77e9dd37fc55cdb61d549e8f307.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0390150f687e96aad7174c8c5a868989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-07-22更新
|
217次组卷
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3卷引用:吉林省松原市普通高中2020届高三年级4月统一模拟考试数学(文科)
名校
解题方法
4 . 已知抛物线
的焦点为
,过
的直线与抛物线交于
,
两点,
位于第一象限,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5052af434797e12fb45c111ccb426114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7afd91121bcd66f82a5186205b676bd9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-07-22更新
|
1714次组卷
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9卷引用:吉林省梅河口市第五中学2020届高三第七次模拟考试数学(理)试题
吉林省梅河口市第五中学2020届高三第七次模拟考试数学(理)试题吉林省通化市梅河口五中2020届高三高考数学(理科)七模试题(已下线)第43讲 抛物线-2021年新高考数学一轮专题复习(新高考专版)(已下线)考点38 直线与圆锥曲线的位置关系-备战2021年新高考数学一轮复习考点一遍过(已下线)第40练 抛物线-2021年高考数学(理)一轮复习小题必刷辽宁省辽南协作校2022届高三第三次模拟考试数学试题(已下线)专题2.5 抛物线(B卷提升篇)-2020-2021学年高二数学选择性必修第一册同步单元AB卷(新教材人教B版)上海市金山中学2020-2021学年高二下学期第一次月考数学试题抛物线中的弦
名校
解题方法
5 . 已知函数
在
处的切线平行于x轴.
(1)当
时,求
在
上的最大值;
(2)若
,
在
上只有一个零点,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edf43d23b4678012440358685871dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8d82b0a97f17f6fbd0587cdfc984e1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8d82b0a97f17f6fbd0587cdfc984e1.png)
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2020-07-22更新
|
342次组卷
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3卷引用:吉林省示范高中(四平一中、梅河口五中、白城一中等)2020届高三第五次模拟联考数学(理)试题
6 . 已知椭圆C:
(
)的左、右焦点为
、
,离心率为
,点G与
关于直线l:
对称.
(1)求直线
被椭圆C所截得的弦长;
(2)是否存在直线
:
与椭圆C交于不同的两点M,N,使得直线
、
关于
所在直线对称?若存在,求出直线
的方程;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b060841938313042cc2963204e7bd17f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ff98e615f886135ca5ede0a082891.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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81c240e4c00f12eaeb1084289beb32f.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15206717884bea18dfe2d7099489f849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e9e953a4a5f98c96bbe67cbaadf76d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a459f78e4a3516d8a8535290ede7f386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81c240e4c00f12eaeb1084289beb32f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
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2020-07-22更新
|
287次组卷
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4卷引用:吉林省示范高中(四平一中、梅河口五中、白城一中等)2020届高三第五次模拟联考数学(理)试题
名校
7 . 已知函数
,
.
(1)若当
时,求
的单调区间;
(2)若
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3438e9e81c3aef2dcc2be690fc660f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac65e4153965d351c3d6ad587f2adcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8195b581bf12581e000e490a45cd029.png)
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8 . 已知椭圆C:
的左、右焦点分别为
,
,椭圆C短轴两顶点和两焦点构成的四边形为正方形,且周长为
,经过
与坐标轴不垂直的直线l交椭圆于M,N两点.
(1)求椭圆C的标准方程;
(2)若椭圆C短轴上的点
,满足
,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82fe25db889399bb3ca4ffd5dd5db84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61d572ecf27dc02fcbd588f24647b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61d572ecf27dc02fcbd588f24647b1d.png)
(1)求椭圆C的标准方程;
(2)若椭圆C短轴上的点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/815132f98e469313ae0295833e52d4fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e849753c1b4bbab8327c5ade6cc2469.png)
您最近一年使用:0次
9 . 已知函数
在
上的最小值为3,直线l在y轴上的截距为
,则下列结论正确的是( )
①实数
;
②直线l的斜率为1时,
是曲线
的切线;
③曲线
与直线l有且仅有一个交点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634d72e3ba0574243a232717049408a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
①实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
②直线l的斜率为1时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
③曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 已知抛物线
恰好经过等腰梯形
的四个顶点,
,
的延长线与抛物线E的准线的交点
.
(1)求抛物线E的方程;
(2)证明:
经过抛物线E的焦点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2c84933c089ac8dd228def0c2200ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8e727e4efc22b49649f71ae9c9d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6424c41d9d1f85b9152446b91d411d.png)
(1)求抛物线E的方程;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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2020-07-22更新
|
172次组卷
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4卷引用:吉林省示范高中(四平一中、梅河口五中、白城一中等)2020届高三第五次模拟联考数学(文)试题