解题方法
1 . 设抛物线
的焦点为F,过F的两条直线
,
分别交抛物线于点A,B,C,D,且
,
的斜率
,
满足
,若
的最小值为30,则抛物线的方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0f49919081a54b832920fe064d75013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b361858bb71ef1f71ee0c9eddd1e126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8de7bab208c9da3b728853f16e509d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . (1)已知关于
的不等式
恒成立,求实数
的取值范围;
(2)已知
,证明不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17091cdbe85a22726d6b6374e8d2d5b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f722965fd3539fb10ff11940460285a1.png)
您最近一年使用:0次
3 . 下列四个结论中正确的个数是__________ .
(1)
为
的导函数,若
,则
为函数
的极值点;
(2)过函数
图象上任一点只能作出一条切线;
(3)等轴双曲线的离心率都是
;
(4)已知抛物线
,过定点
的直线与抛物线C交于A、B两点,O为坐标原点,则
为定值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57aae213fa87eb9e57cc689fe20bb4fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)过函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3daad3a31a3597f75fa109736ed2ebf.png)
(3)等轴双曲线的离心率都是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(4)已知抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d811e3371b79f5bd7a816acfa3aa4d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ace585d3cc2e113a0927cdf9e56756a.png)
您最近一年使用:0次
解题方法
4 . 已知椭圆
:
的离心率为
,且经过点
.
(1)求椭圆
的方程;
(2)过点
作直线交椭圆
于
,
两点,若点
关于
轴的对称点为
,证明直线
过定点.
![](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/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8da36e3081bfe5d32c9ec70be4da3da.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.png)
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5d54dfb9237412a7c1c00658830de6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ac8c5700ce2de9a140c4adea742168.png)
您最近一年使用:0次
5 . 已知椭圆
的离心率为
,且椭圆上一点P的坐标为
.
(1)求椭圆M的方程;
(2)设椭圆的右顶点为C,不经过点C的直线l与椭圆M交于A,B两点,且以线段AB为直径的圆过点C,
①证明:直线l过定点,并求出该定点坐标;
②求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d59419fff2c12efda787ef2c195af18.png)
(1)求椭圆M的方程;
(2)设椭圆的右顶点为C,不经过点C的直线l与椭圆M交于A,B两点,且以线段AB为直径的圆过点C,
①证明:直线l过定点,并求出该定点坐标;
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
6 . 若
.
(1)讨论
的单调性;
(2)若对任意
,关于
的不等式
在区间
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530c25bbb7fa0c502b07bdc4382cdfc1.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e436ea3ddcd13e69171135f0ff8e934a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59814f772897e922920b9b4f60bdcefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729af7fcdfcff9998cfddc43297b8f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
解题方法
7 . 设函数
.
(1)若不等式
对任意的
,
都成立,求实数m的取值范围;
(2)关于x的方程
在
上有且只有一个解,求实数k的取值范围.
参考数据:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dacfafc0b01f8e530c7449d8df365424.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf7a0098d4ea8a0ad76dab74698fcb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9013a54452d24014e260fb31fca4e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f86d6c380982b4bef58c7e047983376.png)
(2)关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330d61bc0eac3bb6e1a8aefb73ac171e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405361d7be3c9e4d462a4e955d8fe3c.png)
您最近一年使用:0次
8 . 已知椭圆
,点
在椭圆
上且在第四象限,
为左顶点,
为上顶点,
交
轴于点
,
交
轴于点
,则
面积的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8868e2ba4401d727f1bcb1f5483b48f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/177678001b2ccde1db8f57fa5e017002.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-04-27更新
|
250次组卷
|
2卷引用:湖北省荆州市2018-2019学年高二下学期期末质量检查数学(文)试题
名校
9 . 已知函数
.
(1)当
时,求
的最值;
(2)若函数
存在两个极值点
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcdad56c463d904127b1ba41c93160c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f58d4591d668b4bc32fae4faab8298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2dc42f7622717d6eb5d1c66b7469d3.png)
您最近一年使用:0次
2020-04-11更新
|
1411次组卷
|
15卷引用:湖北省孝感市2018-2019学年高二下学期4月期中联考数学(理)试题
湖北省孝感市2018-2019学年高二下学期4月期中联考数学(理)试题吉林省白城市通榆县第一中学2018-2019学年高二下学期第三次月考(期中)数学(理)试题山东省2018-2019学年高二下学期阶段检测(3月)联合考试数学试题山东省泰安市肥城市2018-2019学年高二下学期期中数学试题吉林省辽源市东辽县第一高级中学2019-2020学年高二5月考试数学(理)试题河南省南阳市六校2019-2020学年高二下学期第二次联考数学(文)试题辽宁省朝阳市凌源市2019-2020学年高二下学期期末联考数学试题黑龙江省大庆中学2020-2021学年高三10月月考数学(理)试题安徽省马鞍山市含山中学2019-2020学年高二下学期5月月考数学(理)试题福建省华安县第一中学2021届高三上学期期中考试数学试题(已下线)第03章 《期中综合试卷一》(A卷基础篇)-2020-2021学年高二数学下学期同步单元AB卷(苏教版)吉林省长春市第二实验中学2020-2021学年高二下学期4月月考数学(理)试题重庆市十八中两江实验中学2020-2021学年高二下学期期中数学试题江苏省南通市海安县曲塘中学2020-2021学年高二上学期阶段性测试二数学试题(已下线)5.3.2 函数的极值
名校
10 . 已知
是函数
的导函数,且对任意的实数
都有
(
是自然对数的底数),
若不等式
的解集中恰有两个整数,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd73c679a5c46df14ef950391086ac55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51eb2613dda00677d447c986cac505bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcebee4d84fec4a07e5a9c2004869f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次