解题方法
1 . 设
,函数
,
的定义域都为
.
(1)求
和
的值域;
(2)用
表示
中的最大者,证明:
;
(3)记
的最大值为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de31deeb84ab993f11d20bf7d0f49eb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707462a827b4b867780346e3362ed77b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc548dc9512f29922c422da279b3de18.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ac68482ffb69f09e33a5b641565801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26a0bec803f55efa2b2fef08e33bcc4.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9cb2babf873aa67865ea6670032eb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9cb2babf873aa67865ea6670032eb4c.png)
您最近一年使用:0次
2 . 已知椭圆的右焦点为
是
上的点,直线
的斜率为
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30361168bea66300f35d8d59b1b55158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07610f4e3c24a5f6ed3d36688457c1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89f44b6d6d35a6450fb6a1a9811c46e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
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名校
3 . 已知函数
.
(1)讨论
的单调性;
(2)若不等式
恒成立,求
的取值范围;
(3)当
时,试判断函数
的零点个数,并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca503660e161b422720a08a53c3af343.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4f4efb776c41d4190aa1c08572905e.png)
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2024-03-12更新
|
1290次组卷
|
3卷引用:福建省漳州市2024届高三毕业班第三次质量检测数学试题
4 . 已知函数
有两个不同的零点
,
.
(1)求实数
的取值范围;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd78eb2c0004a61bb5f8811e514162ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cc18f9bf8ff3a5ffc779edaed73730.png)
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5 . 已知函数
的定义域为
,其导函数为
,且
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77235c696e1964d7d39de16a09f06649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae504935fef5ea96d02fad4bf5290e.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() |
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2023-06-20更新
|
741次组卷
|
4卷引用:福建省漳州市2023届高三第四次教学质量检测数学试题
名校
解题方法
6 . 已知椭圆
的中心为坐标原点
,对称轴为
轴、
轴,且点
和点
在椭圆
上,椭圆的左顶点与抛物线
的焦点
的距离为
.
(1)求椭圆
和抛物线
的方程;
(2)直线
与抛物线
交于
两点,与椭圆
交于
两点.
(ⅰ)若
,抛物线
在点
处的切线交于点
,求证:
;
(ⅱ)若
,是否存在定点
,使得直线
的倾斜角互补?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d620db6cf886c3daf78afe09f967984.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e380f331149fa273bc00856663effc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e677a11b56f7912f9bd0fadcf2a272b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becdcb8a871e8965853acf0687034c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d68c714cf678a7d66f0d8f50e2f86c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26983393a7331796a3ad8a16d6c2158e.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4244af644b011d8292c8533368a9c9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df15a1a5b257810d95275c7c98700319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc0d968e77635586be1e1040d3a22ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
您最近一年使用:0次
2023-03-14更新
|
1702次组卷
|
4卷引用:福建省漳州市2023届高三毕业班第三次质量检测数学试题
名校
解题方法
7 . 已知函数
.
(1)当
时,
,求
的最大值;
(2)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1dd44305f27d60c823087ba90b92fb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed7193e060713e7cc667846a1a1bc110.png)
您最近一年使用:0次
2022-09-11更新
|
1290次组卷
|
5卷引用:福建省漳州市2023届高三上学期第一次教学质量检测数学试题
名校
解题方法
8 . 阿基米德的“平衡法”体现了近代积分法的基本思想,他用平衡法求得抛物线弓形(抛物线与其弦
所在直线围成的图形)面积等于此弓形的内接三角形(内接三角形
的顶点C在抛物线上,且在过弦
的中点与抛物线对称轴平行或重合的直线上)面积的
.现已知直线
与抛物线
交于A,B两点,且A为第一象限的点,E在A处的切线为l,线段
的中点为D,直线
轴所在的直线交E于点C,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeeba339d26f4f8e8748a86c7975032b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b527ec9f92467b8f24554a2a67ee987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02835ac81c8e009d7a04f3fe2af52558.png)
A.若抛物线弓形面积为8,则其内接三角形的面积为6 |
B.切线l的方程为![]() |
C.若![]() ![]() ![]() |
D.若分别取![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2022-03-10更新
|
3866次组卷
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8卷引用:福建省漳州市2022届高三毕业班第二次教学质量检测数学试题
福建省漳州市2022届高三毕业班第二次教学质量检测数学试题重庆市缙云教育联盟2022届高三下学期3月质量检测数学试题(已下线)思想04 化归与转化思想(练)--第三篇 思想方法篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》江苏省徐州市第七中学2022届高三下学期4月月考数学试题(已下线)专题3 阿基米德三角形 微点2 阿基米德三角形综合训练湖北省武汉市5G联合体2022-2023学年高二下学期期中联考数学试题江苏省镇江市丹阳高级中学2024届高三下学期2月阶段检测数学试题(已下线)专题08 圆锥曲线 第一讲 圆锥曲线的方程与性质(解密讲义)
9 . 已知F为抛物线C:
的焦点,K为C的准线与x轴的交点,点P在抛物线C上,设
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b631e7801c2da2d218760069c32341.png)
A.抛物线C在点![]() | B.![]() ![]() |
C.![]() | D.存在点P,使得![]() |
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10 . 已知函数
.
(1)求
的单调区间;
(2)若
,且
有两个不同的零点
,证明:
有唯一零点(记为
),且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35df8a25d66881b3d0beb433ca2b6cdc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31cdc61764eef3fbe2dc5fafaa2efb39.png)
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